nice weather it is!Let's go out for a picnic．（ ）
| A． |
What |
B． |
How |
C． |
What a |
The environment will be much worse______everyone has a sense of protecting it．（ ）
| A． |
unless |
B． |
if |
C． |
so that |
﹣﹣﹣Do you know his birthday， Eric？
﹣﹣﹣Not exactly． I just know he was born______．（ ）
| A． |
On July 1 |
B． |
in the 1980s |
C． |
On 1 July， 1980 |
﹣﹣﹣______a big clock on the wall？
﹣﹣﹣Yes， but it was broken in the earthquake．（ ）
| A． |
Have you got |
B． |
Did you have |
C． |
Was there |
For your own______，please don′t smoke on the plane．（ ）
| A． |
feelings |
B． |
safety |
C． |
health |
Class， please teach______the article we will learn tomorrow．（ ）
| A． |
yourselves |
B． |
yourself |
C． |
ourselves |