We be too careful while dealing with these social problems.
| A．may not | B．needn’t |
| C．cannot | D．mustn’t |
----May I go swimming alone this afternoon, Dad? ---No, you . It is dangerous.
| A．may not | B．mustn’t | C．needn’t | D．don’t |
The cakes in the restaurant _______, so they _______ well.
| A．are tasted better, are sold | B．are tasted well, sell |
| C．taste terrible, are sold | D．taste nice, sell |
She tells me that her brother ______ Guo An Team for more than two years.
| A．has been to | B．has joined |
| C．has gone to | D．has been a member of |
All of us went to the park_______ Bob. He had to look after his sister.
| A．with | B．expect | C．except | D．besides |
These are the photos that _____ in Hangzhou.
| A．were taken | B．are taken |
| C．took | D．I was taken |