–He is a doctor and his brother is a doctor, too.
–You mean both he and his brother________ doctors, right?
| A．is | B．be | C．are | D．was |
It is considered a good way for students to ________study with pleasure.
| A．combine | B．join | C．add | D．link |
She can’t help ______ the house because she’s busy making a cake.
| A．cleaning | B．to clean | C．cleaned | D．being cleaned |
The country life he was used to _________ greatly since 1992.
| A．change | B．has changed | C．changing | D．have changed |
You_______that mistake；you were too careless．
| A．should not make | B．should not have made |
| C．ought not have made | D．must not have made |
I really don’t think my best friend w ill be angry, but I’11 go and see her，in case she _______.
| A．will be | B．is | C．does | D．has been |