--- I rang you at about ten, but there was no reply.
--- Oh, that was probably _____ I was seeing the doctor.
| A．for | B．why | C．when | D．how |
Have you ever found _____ flash drive has no enough space? Better replace it for ____ bigger one.
| A．the; the | B．a; a | C．a; the | D．the; a |
Wang Feng’s _________ our school at the English speech contest proved to be a success.
| A．will represent | B．to represent | C．representing | D．represented |
Do you think it _________ to argue with them? The question is not worthy_________.
| A．worth; discussing | B．worthwhile; to be discussed |
| C．worthy; to discuss | D．worth; to be discussed |
The new manager had a bad cold, and _________ couldn’t come to the party.
| A．besides | B．because | C．however | D．therefore |