This is the small house less than 15 square meters, under ______ roof lives a large family of three generations.
| A．which | B．that | C．its | D．whose |
Difficult as the question was, David ____ to find an answer．
| A．failed | B．succeeded | C．forced | D．managed |
Dickens visited America in 1842, publishing American Notes on his return and ____ his experience in another book．
| A．to include | B．including | C．to be included | D．included |
．____ the news, so far, has been good, there may be bad days ahead．
| A．While | B．When | C．If | D．As |
—We’d better go downstairs right now for lunch．
—____ They serve food 24 hours a day．
| A．Hurry up! | B．Take your time． | C．It doesn’t matter． | D．No way! |
The traffic slowed down because of the heavy snow in Yushu County, presenting a new ____ to the recovery from the earthquake．
| A．suffering | B．disaster | C．damage | D．challenge |