—Do you mind my smoking here?
—______. This is a non-smoking room here.
| A．Yes, please | B．Yes. Better not. | C．No, thanks | D．No. Good idea |
More than one doctor _____ involved in the rescue that took place after the earthquake.
| A．was | B．is | C．were | D．are |
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 |