.
By the time he realizes he ________ into a trap, it’ll be too late for him to do anything about it.
| A．walks | B．walked | C．had walked | D．has walked |
— Did you telephone Uncle Sam our plan for the Christmas holidays on his f
arm?
—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 |
-- I’m very tired, helping with the clothes.
----Why not take a rest ,then?
----- ________.
| A．Maybe I should | B．I am glad to hear that | C．With pleasure | D．Thank you |
Oh, it’s so cold in here. Somebody ____ the window, please.
| A．closes | B．close | C．shall close | D．will close |