_______ can a tiger weigh, do you know? — Yes, I know that a big one can weigh over 300 kilos.

This book is ______,I like it very much.

So far, our country _____ a lot. – Yes, I agree with you.

Listen! There is a knock on the door．Who _____ it be?—It must be Jack．Just now I sent for him．

Jamie is a young cook _____ wants to improve school dinners. [ ]