The chairman thought ____ necessary to invite Professor Smith to speak at the meeting.
| A．that | B．it |
| C．this | D．him |
— Are you in favour of Tom’s suggestion________we work around the clock to meet the deadline?
— No. But ______ Jimmy suggested to me sounds practical.
| A．that; what | B．that; that | C．which; that | D．which; what |
— Conductor, can I get to Market Street on this subway?
— Of course. It’s leaving. ___________, please．
| A．Take your time | B．Mind your step | C．Look out | D．Walk slowly |
— There is growing _____ about house prices.
— Don’t worry! Something has been done.
| A．power | B．item | C．series | D．concern |
Everyone knows that________ is dangerous to play with fire, but________ is difficult is to prevent children from playing with fire.
| A．it; what | B．what; what | C．what; it | D．it; it |
One can ______ BBC _____ the air early with his Short-wave radio.
| A．pick up; on | B．pick out; over | C．pick up; through | D．pick up; by |