Some hard-working students always keep a torch in their dormitories _____ there is a power failure.
A. if B. unless C. so that D. in case
_____ in charge of two classes made Mrs. Li, head of Senior Grade 3, extremely tired.
A. Leaving B. Left
C. Being left D. Having left
Almost every teenager will experience a period in their life _____ they aren’t content with their parents.
A. when B. where C. that D. which
Little did the teacher imagine that a student good at maths _____ have failed in the exam.
A. might B. should C. need D. would
— I’ve never seen you so rude!
— I _____ something I shouldn’t have, but I didn’t mean that.
A. have said B. had said
C. did say D. was saying
Tom was sorry to learn that his grandfather _____ for half an hour when he got to the hospital.
A. had died B. had been dead
C. died D. has been dead
