The boy wanted to ride his bike in the street, but his mother told him ________.
| A．not do it | B．not to do | C．not to | D．do not to |
Nowadays________of business letters are written in English．
| A．two third |
| B．two thirds |
| C．two three |
| D．second three |
—Have you ever been to Shanghai？
—Yes．I________there a few months ago．
A．have been
B．went
C．have gone
—Would your younger brother go for a picnic this Sunday？
—If I don’t go，________．
| A．so does he |
| B．so will he |
| C．neither does he |
| D．neither will he |
It’s said that________of the water around the world________polluted．
| A．two third；has |
| B．two thirds；have |
| C．two third；are |
| D．two thirds；is |
She has never been to the city，________she？
A．doesn’t
B．hasn’t
C．has