
Exercise 7
9.2 - It's a mystery!·New Total English Upper-Intermediate - Students' Book
Question
Complete the sentences using must / might /can't / couldn't (have) and the correct form of the verb in brackets.

9.2 - It's a mystery!·New Total English Upper-Intermediate - Students' Book
Question
Complete the sentences using must / might /can't / couldn't (have) and the correct form of the verb in brackets.