глагол to be!переведите и задайте общий вопрос!
1 He is clever enough to understand
2They are all here
3Everybody was at home
4Our only guide was the stars 
5 Her hair is grey
6 It was who he was late
7 This is welcome news
8 The information  is reliable 
9 His  knowledge is poor 
10 The fruit is ripe 
11 The debate was long?
12What are the contens of the letter?
13His clothes are dirty
14 Twenty one students were present at the meeting with the famous professor  15