I’m putting on weight. The doctor has warned me to _________ sugar.
| A．keep up | B．keep back | C．keep off | D．keep away |
The Science Museum, ____________ we visited during a recent trip to Britain, is one of London’s tourist attractions．
| A．which | B．what | C．that | D．where |
--- Is Peter there?
--- _____________, please．I’ll see if I can find him for you．
| A．Hold up | B．Hold on | C．Hold out | D．Hold off |
--- Do you mind if I record your lecture?
--- ___________．Go ahead．
| A．Never mind | B．No way | C．Not at all | D．No, you’d better not |
We went right round to the west coast by __________ sea instead of driving across _________ continent．
| A．the … the | B．/ … the | C．the … / | D．/ … / |
If the students who killed themselves had only been more confident, their deaths ________.
| A．need have been avoided | B．must have been avoided |
| C．might have been avoided | D．will have been avoided |