．------ Have you checked all the relief ______ to the people in the drought-hit areas?
------ Yes, several times．But I’ll check it once more．
| A．sent | B．sending | C．to send | D．to be sent |
Mrs. White showed her students some old mapsfrom the library.
| A．to borrow | B．to be borrowed | C．borrowed | D．borrowing |
Suddenly the idea came to me I might turn to Mr. Smith for help.
| A．what | B．that | C．which | D．whom |
It is still unknown_______ caused the accident last Saturday.
| A．that | B．when | C．what | D．how |
____ wants to stay in a hotel has to pay their own.
| A．Anyone | B．The one | C．Whoever | D．Who |
The experiment shows that proper amounts of exercise ,if _______regularly, can improve our health.
| A．being carried out | B．carrying out | C．carried out | D．to carry out |