помогите пожалуйста))

1.I don't think he was there, but i'm not sure.
a) It couldn`t have been him b) It might have been him c) It must have been him

2. What does your boyfriend look like?
a) He`s tall and has wavy brown hair b) Skiing and going to the cinema with me
c) He`s clever and very polite

3. What are you__?
a) do b) think c)thinking

4. I didn`t sleep last night?
a) You could be tired b) You might be tired c) You must be tired

спасибо большое))

1. I don't think he was there, but i'm not sure.  b) It might have been him 2. What does your boyfriend look like? a) He`s tall and has wavy brown hair 3. What are you__?  c) thinking 4. I didn`t sleep last night?  b) You might be tired