Recently， school violence ______ _in some schools．
Luckily，our government has carried out some policies to stop it．（ ）
A．has appearedB．appeared
C．will appear
﹣I saw your mother in the library just now．
﹣It ______ be her．She went to Beijing yesterday．（ ）
| A． |
can't |
B． |
mustn't |
C． |
needn't |
About ______ of the land ______ covered with trees and grass．（ ）
| A． |
three fifths； is |
B． |
three fifths； are |
C． |
three fifth； are |
Whenever Tom reads an interesting novel，he can't keep it to ______ and wants to share it with his classmates．（ ）
| A． |
him |
B． |
he |
C． |
himself |
﹣How far is your home from school？﹣About ______ walk．（ ）
| A． |
five minute's |
B． |
five minutes' |
C． |
five minutes |
﹣Who is ______ girl behind the tree？
﹣Which one？The one with ______ umbrella？（ ）
| A． |
a； the |
B． |
the； an |
C． |
the； a |