Question

Read these sentences and choose the correct answer to fill in the gaps. 1. That's ridiculous- you ____ be joking. must can 2. They're two hours late- there ___ be something wrong. can must 3. My sister _____ read. must can

Answer 1

1) must
2)must
3)can
4)
5)

Answer 2

1. must  

2. must

3. can

Answer 3

Sure, I'd be happy to help. Here are the correct answers to fill in the gaps:

1. That's ridiculous - you must be joking.
2. They're two hours late - there must be something wrong.
3. My sister can read.