I didn’t go to the mountains _____ the bad weather .
| A．so | B．because of |
| C．because | D．but |
I don’t know when he _________ tomorrow. If he _________, I’ll let you know.
| A．comes, comes | B．will come, comes |
| C．comes, will come | D．came, will come |
Our teacher told us light (光) _________ much faster than sound .
| A．travels | B．traveled |
| C．had traveled | D．will travel |
--- Will you please fly a kite with me in the park this afternoon?
---_____. I will look after my sister.
| A．I think so . | B．I’d like to. |
| C．I’m afraid so. | D．I’m afraid not . |
---Could you tell me_________? ----About 6 o’clock.
| A．when he will arrive | B．when does he arrive |
| C．where he will arrive | D．where does he arrive |
---I came to your office yesterday morning, but nobody was in.
--- Sorry, we _______ a meeting .
| A．have had | B．are having |
| C．were having | D．had |