15. It's already 10 o' clock. I wonder how it_________ that she was two hours late on
such a short trip.
.
| A．came over | B．came out | C．came about | D．came up |
.
As reported in the essay by Prof. Brown, it is only in the most difficult circumstances ________ a man’s abilities are fully tested.
| A．when | B．where | C．that | D．as |
.
______ the traffic jam we should have arrived at the airport half an hour earlier.
| A．In spite of | B．Except for | C．As a result of | D．But for |
.
_______ US newspaper reported, that from next autumn, ________ new computer system will follow the progress of international students at their schools in the USA.
A. 不填; a B. The; the C. A; aD. A; 不填
.
_____ price decline ______ farmers' income, the central government has decided to buy more crops to protect farmers.
| A．Preventing; to affect | B．To prevent; affecting |
C．Having prevented; affecting | D．To prevent; being affected |
.
What a pity! He got nothing in ______ for his hard work.
| A．award | B．prize | C．reward | D．result |