Don't you know passengers ________ smoke on high﹣speed trains？（ ）
| A． |
needn't |
B． |
mustn't |
C． |
wouldn't |
D． |
couldn't |
﹣﹣﹣ I think Miss Wang is the most _______ teacher in our school.
﹣﹣﹣That's true.She never gets angry with her students.（ ）
| A． |
patient |
B． |
beautiful |
| C． |
interesting |
D． |
important |
﹣﹣﹣Why does our chemistry teacher often ______ her？
﹣﹣﹣Because she gets full marks in chemistry every time.（ ）
| A． |
praise |
B． |
forget |
C． |
control |
D． |
hurt |
﹣﹣ How do you improve your English______ ？
﹣﹣﹣I often talk with the persons whose mother language is English.（ ）
| A． |
population |
B． |
transportation |
| C． |
pronunciation |
D． |
suggestion |
﹣﹣﹣Would you please________ what you said？
﹣﹣﹣Sure.I asked you to have a rest.It's too hot today.（ ）
| A． |
show |
B． |
spell |
C． |
review |
D． |
repeat |
﹣﹣﹣When will you go to see your grandpa？
﹣﹣﹣I'll see him_______ I get off the plane.You know I miss him very much.（ ）
| A． |
as soon as |
B． |
as long as |
| C． |
as far as |
D． |
as easily as |