Look! The boy in the white shirt ___be Tom. –It ____be him. I saw him enter the library just now.

Is that _________ schoolbag—No, it isn’t．It’s _______．

Look at the trouble I am in! If only I _____ your advice. [ ]

l we attend the concert this evening — Great idea,_____ we can do some shopping first

We should give students more chances to _______ the problems in their daily lives.[ ]