During the next ten years we both worked day and night to
_____ the money we had borrowed.
| A．pay off | B．pay for | C．pay to | D．pay back |
David got a higher grade in the final exam, for, you see, he made mistakes.
| A．few | B．fewer | C．little | D．less |
I suggested to my mother that she a drawing club after her retirement form teaching.
| A．join | B．joins | C．joined | D．would join |
--- Did you telephone Uncle Sam our plan for the Christmas holidays on his farm?
--- Yes, he was happy about our arrival, and he eagerly asked when .
| A．has we arrived | B．we had arrived |
| C．were we arriving | D．we were arriving |
When I got New York, I had to attend a school for students first language was not English.
| A．who | B．which | C．whose | D．where |
More than five doctors and rescuers have got to Yushu County up to now.
| A．thousand | B．thousands |
| C．thousand of | D．thousands of |