We must keep our room clean. Dirt and disease go _____ you know.
| A．from time to time | B．hand in hand |
| C．step by step | D．one after another |
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 |
To learn English well, we should find opportunities to hear English ___________ as much as we can.
| A．speak | B．speaking | C．spoken | D．to speak |
__________ you eat the correct foods ___________ be able to keep fit and stay healthy.
| A．Only if; will you | B．Only if; you will |
| C．Unless; will you | D．Unless; you will |