Global MCQ Practice
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Must Deduction CertaintySet 8

1Everyone's wearing hats and coats. It ..... be very cold.
2John is wearing a suit; he ..... going to a job interview.
3You haven't eaten all day. You ..... be hungry. (certainty)
4I was using my pencil a minute ago. It ..... be here somewhere!
5The traetment ..... be good. All the patients are better.
6He's very rich. He ..... own three cars.
7Mike ..... be home by now. His plane landed four hours ago.
8He passed last week's exam. He .....
9"SOMEONE'S AT THE DOOR. IT MUST BE JANE".THIS MODAL EXPRESSES .....
10Alex grew up in Germany so he ..... know German.
11I am sure that John is not a thief. A. John can't be a thief. B. John mustn't be a thief.C. John might not be a thief. D. John isn't be able to be a thief.
12I'm sure he's at home.
13Jessica's engagement ring is enormous. It ..... have cost a fortune.
14Identify the modal auxiliary in the sentence: "They must be at the park by now."
15Choose the correct option to complete the dialogues.A: 'I've just run 20 km. I'm training for a marathon.' B: 'Really? You ..... be exhausted.'
16He worked hard on his report, then accidentally deleted the file from his computer. He ..... be upset.
17Marlene said she had been working all night, I think .....
18She ..... be at work; her car is in the parking lot.
19Look at that guy over there. He's only got a T-shirt on and it's 5 degrees. He ..... be freezing!
20Write a sentence expressing certainty about your best friend.
21You ..... be joking.
22Choose the modal that completes the sentences. Think about the context of the sentence. All their three daughters graduated from university. They ..... be very proud
23Given his skill level, he ..... make it to the finals of the competition.
24I have no idea where she is. She ..... be in her room writing some poems.
25Choose the modal verb that can express a strong deduction based on evidence:
26Jerry is back at home now. Police might / can't / must have released him. It's the only explanation.
27I'm sure she is not at home yet.She ..... at home yet.
28Which of the following modals conveys a high likelihood?
29"Where is Owen?" "He ..... home. He wasn't feeling well."
30She ..... fifty or so when I first met her at a conference.
31Your head is swollen ..... you've been stung by bees.
32"I think this scarf belongs to Joan." It ..... to her because she doesn't wear a scarf.
33I can't find my keys. I have a feeling i ..... them in the library
34Which of the following demonstrates high modality?
35He looks very pale and confused. He ..... be sick.
36In "there must be an angel" , the modal verbs expresses:
37Why did she marry him?
38A: Why is she staring at me like that?B: I'm not .....
39They ..... be at the park; their car is gone.
40Must:Indicates a strong logical conclusion or certainty about something based on evidence or reasoning. It suggests that the speaker believes something to be true. Often used to make affirmative deductions.
41The teacher ..... be Mark. I ve seen his bicycle outside.(100%)
42Our teacher was absent yesterday. She ..... been sick.
43She ..... be out tonight. She's sick.
44On probability a 100% means that it ..... happen.
45You have been working round the clock. You ..... be tired now.
46I'm sure that the animal we saw in the forest wasn't a bear!
47Daniel records himself playing videogames twice a week. He ..... be a gamer.
48There was a terrible E. Coli outbreak at the school.
49Your eyes look red. You ..... been crying. What's wrong?
50He ..... his job because he seems very happy.
51The younger son ..... lied.=I'm sure the younger son lied.
52This fish smells terrible, i'm certain it isn't fresh
53She always gets such good grades at school. She ..... work very hard.
54I'm sure the traffic is really bad today. That ..... be the reason why Eva is so late.
55To deduce that something is true (certainty).Jimin has worked all day. He ..... be tired.
56Look at the way that guy's walking. He ..... be drunk!
57Which sentence correctly uses a modal of deduction in the negative form?
58Nobody knew about my plans so it ..... you that gave it away.
59I called the Stevensons, but no one answered. They ..... gone to the country.
60No, it isn't. He ..... have done something wrong. How annoying!
61We are all certain that these Roman ruins ..... well preserved.