His lack of professional knowledge _______for the failure of the experiment.
| A．accounted | B．explained | C．counted | D．contributed |
We were all surprised when he made it clear that he ___ office soon.
| A．leaves | B．would leave | C．left | D．had left |
I hope to call ___ you ___ your office at two o’clock today.
| A．on, at | B．at, on | C．on, of | D．on, to |
Mr. King, the legs ___ were badly hurt, was taken to hospital.
| A．whose | B．of whom | C．that | D．which |
___ to go shopping with me?
| A．How do you like | B．Are you like | C．Would you like | D．What you like |
---Is there ___ you don't understand?---I think ___ is quite clear.Thank you.
| A．something, nothing | B．anything, everything | C．nothing, anything | D．everything, anything |