____did the rainstorm come？
While we ____ a physics lesson yesterday．（ ）
| A． |
When； have had |
B． |
While； are having |
| C． |
When； were having |
D． |
While； have |
Nowadays China has made great achievements in many fields． We really ______ our amazing China．（ ）
| A． |
take pride in |
B． |
take care of |
C． |
take an interest in |
Except for working hard， we should give more attention to proper exercise and enough sleep． ______ ， health always comes first．（ ）
| A． |
For example |
| B． |
After all |
| C． |
So far |
In China， we are using the FAST to find stars ______． Now more and more people want to know about the largest radio telescope（望远镜） in the world．（ ）
| A． |
in person |
B． |
in public |
C． |
in space |
If one of your friends sends you a message to borrow money on the Internet， you'd better phone him ______first to make sure of that．（ ）
| A． |
recently |
B． |
directly |
C． |
finally |
Reading the first ______ of each paragraph before you read the whole text helps you get the main idea quickly．（ ）
| A． |
letter |
B． |
word |
C． |
sentence |