It was five hours _____ the French climber reached the top of the world’s tallest building.
| A．since | B．that | C．before | D．when |
Many sailors think that a thick fog is their ________ enemy.
| A．dead | B．dying | C．death | D．deadly |
I made a suggestion ________ he ________ to Australia for further education.
| A．that; goes | B．that; go | C．which; will go | D．what; will go |
—Will you ________ our house while we are out on holiday?
—Well, that ought to be no problem.
| A．keep an eye on | B．keep an eye out | C．have an eye for | D．turn a blind eye to |
The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.
| A．those | B．that | C．it | D．this |
________ the little boy looked after his sick uncle a whole year moved us all.
| A．What | B．That | C．When | D．Which |