________ to the top of the hill and you'll find the city more beautiful．
| A．Climb | B．Climbing | C．If you climb | D．When climbing |
The boy spent as much time playing video games as he ____ studying.
| A．does | B．had been | C．was | D．did |
Have you got any explanation to the question ___ he came here for last weekend?
| A．why | B．what | C．how | D．which |
I’ve spare ___ juice for you, and your half ____ in the refrigerator.
| A．half the, is | B．the half, are | C．my half, is | D．a half, are |
Of the three statements he has suggested __ the heating problem, I think the last one is the best.
| A．solving | B．to solve | C．to solving | D．solve |
It was very kind of you to do the washing-up but you _____ it
| A．needn’t do | B．shouldn’t do | C．mustn’t have done | D．needn’t have done |