________hard before, Tom is afraid of failing in the exam.
| A．Having been worked | B．Not to have worked |
| C．Having never worked | D．Never have worked |
Historical experience can as a most important source of information.
| A．serve | B．use | C．regard | D．prove |
Have a good rest, you need to your energy for the tennis match this afternoon.
| A．have | B．save | C．hold | D．get |
. It was so noisy out side that he couldn’t down to read.
| A．settle | B．put | C．sit | D．lie |
He offered to her a hand as the suitcase was too heavy for her to carry.
| A．hold | B．show | C．lend | D．borrow |
----When did the concert ?
---Well, two or three years ago?
| A．happen | B．take place | C．hold | D．start |