It’s important _________ us _________ some good friends.
| A．for, having | B．of, to have | C．for, to have | D．of, having |
I think _______ our duty to keep our environment clean and tidy.
| A．this | B．that | C．it | D．one |
The Greens will have _______ holiday in China.
| A．two weeks | B．two week | C．two-week | D．a two-week |
There are many shops on ________ side of the street.
| A．both | B．every | C．each | D．each of |
—I’m sorry to keep you waiting for me so long.
—_______
| A．I don’t think so. | B．Don’t say so. | C．It doesn’t matter. | D．I’d love to. |
Sally sings pretty _______ and she is also _______ at dancing.
| A．well; well | B．good; good | C．good; well | D．well; good |