—I’m sorry to keep you ____ too long.The bus was ____crowded that I couldn’t take the first bus.
—It doesn’t matter.
A. to wait,so B. waiting,so C. waiting,too
I have to speak to my grandpa loudly because there’s _______ with hiSears.
| A．wrong something | B．something wrong |
| C．anything wrong | D．nothing wrong |
The teacher came in. All the students stopped ______ and ______to her.
| A．talking, listened | B．talking, listen |
| C．to talk, listened | D．to talk, listen |
Don’t go out on the thin ice, ________ you’ll fall in the river.
| A．and | B．but | C．so | D．or |
We love to go to the country in spring because the flowers smell so _____.
| A．well | B．nice | C．wonderfully | D．nicely |
—May I smoke here? —________, you ________. It can be dangerous.
| A．Yes, can | B．No, can’t | C．Yes, may | D．No, needn’t |