Jane， I saw your mother yesterday．
It _________be her． She is working abroad．（ ）
| A． |
mustn't |
B． |
can't |
C． |
shouldn't |
D． |
couldn't |
You can surf the Internet you want to know about the 2020 World Middle School Games．（ ）
A．untilB．afterC．if
﹣How ! There are no workers in the bank．
﹣It's the first self﹣service bank in China．（ ）
A．strangeB．scaryC．boring
Blue whales are ． We should try to protect them．（ ）
A．in timeB．in publicC．in danger
﹣ does Liu Chuanjian do？
﹣He's a pilot of Sichuan Airlines． He's a hero!（ ）
A．WhatB．WhereC．When
﹣I tried many ways to solve the problem， but of them worked．
﹣Never give up． You' ll surely make it．（ ）
A．allB．noneC．neither