This printer is of good quality．If it _______ break down within the first year, we would repair it at our expense．
A. would B. should C. could D. might
________achievements, last week’s ministerial meeting of the WTO here earned a low, though not failing, grade.
A. In terms of B. In case of
C. In favour of D. In face of
Alice tried to keep calm, but her red face ______ the fact that she was nervous.
A. rejected B. marked
C. explored D. betrayed
（2017·江苏）The disappearance of dinosaurs is not necessarily caused by astronomical incidents. But _______ explanations are hard to find .
A. alternative B. aggressive
C. ambiguous D. apparent
-- Bob! How is your project? I heard you started it last Friday, right?
--Oh! I ______ for it. But I haven’t decided when to do it.
A. will prepare B. had prepared
C. have been preparing D. was preparing
--Our company had a hard time last year.
--But we managed ______. Now everything is progressing steadily.
A. moreover B. meanwhile
C. somehow D. therefore
