You never know how much difficulty we had _____ the problem. Luckily, we managed to solve it with Mrs Wu’s help
| A．worked out | B．work out |
| C．working out | D．to work out |
－ We can use QQ to talk with each other online.－ Great! Could you tell me _____it?
| A．how to use | B．what to use |
| C．where it use | D．when to use |
－I saw Emma in the supermarket this morning.－ Impossible. ____ Tibet
| A．She wants to go | B．She has been to |
| C．She has never been to | D．She has gone to |
I can’t memorize new words unless they ____ many times.
| A．spell | B．were spelt |
| C．are spelt | D．will spell |
____ Sally _____Bob sings well. I believe must be winners in the singing competition.
| A．Neither/ nor | B．Not only/but also |
| C．Either/ or | D．Both/ and |
— Would you mind my sitting here?— ____. It’s for Miss Green.
| A．Of course not | B．Not at all |
| C．You’d better not | D．Never mind |