Question

3 Complete the dialogues with the correct modal

verb in brackets.

A Mum may (can’t / may) be surprised that I got

an A+ for my exam.

B Well, you won't know until you tell her!

1 A He ____ (must / can’t) be her brother. They

don’t look like each other.

B You're right. That's her boyfriend, not her

brother!

2 A We ____ (could / must) be frightened on the

roller coaster, but let's try it!

B OK! Let's go!

3 A Harry ____ (might / must) not know Amy, so

I'll introduce them.

B That's nice of you.

4 A Goldfish ____ (may / must) get bored. I'm

certain about it.

B I don’t agree. They seem happy to me.

5 A She ____ (may / can’t) be annoyed with you

because you laughed at her.

B Oh, no! I hope not!​

Answer 1

Respuesta:

1. can´t 2. could 3. might 4. must 5. may

Explicación:

1. The situation is impossible, it is certain that it is not true, the clue of this sentence is "they don´t look like each other"

2. The situation is possible, but not certain, we usually use could or might for that, so in this case, the correct option is "could"

3. We cannot use "must" followed by "not" in deduction verbs. So the correct option is might, also because you are not sure about the situation.

4. The clue of this sentence is "I'm certain about it." So we have to use "must" to show that it is certain, logical.

5. The only option that makes sense is "may" just because of the meaning of the sentence.