--- What’s your question?
---I want to know _________.
| A．how can trees help us | B．how do trees help us |
| C．how trees help us | D．how can we help trees |
— Would you lik e to take a trip to Hawaii this summer vacation?
— No, I ___________ there several times.
| A．went | B．go |
| C．have gone | D．have been |
—Tom finished his homework, didn’t he?
—__________, though he was ill yesterday.
| A．No, he didn’t | B．Yes, he did |
| C．Yes, he does | D．No, he doesn’t |
____ the help of man-made satellites卫星, we can know what the weather will be like in the future few days.
| A．With | B．Under |
| C．Using | D．By |
— What are you going to do? — I`m going to have my hair _______
| A．cut | B．to cut |
| C．be cut | D．cutting |
— How are you feeling today, Tommy?
— Even __________. I think I have to stay in hospital longer.
| A．better | B．brighter |
| C．stronger | D．worse |