Columbus is known for the great discovery _____________ a new land—America.
| A．making up | B．making into | C．make from | D．made of |
-What about the result of your final examination?
-Not so bad. Not so good as my parents expected，__________.
| A．either | B．instead |
| C．though | D．too |
__________ the Internet is of great help, I don't think it's a good idea to spend too much time on it.
| A．If | B．While |
| C．Because | D．As |
I was working as a waiter last month，__________ my friends were lying on the beach.
| A．whenever | B．though |
| C．for | D．while |
-When did the computer crash?
-This morning, while I __________ the reading materials downloaded from some websites.
| A．have sorted | B．was sorting |
| C．am sorting | D．had sorted |
I was glad to meet Jenny again，__________ I didn't want to spend all day with her.
| A．but | B．and | C．so | D．or |