—Tony said he could fix my bicycle, but I really doubt it.—_ __. He's good at that sort of thing.
---What do you think _____ an important part in their daily lives? ---Music.
He seems to be doing nothing, but _____ he is just waiting for his chance.
The boss requested that he _____ there to work.
You must ______ your papers before you hand them in.
Did you have any difficulty _____ his house?