You had better _____ talk in class without permission.
| A．not | B．don’t | C．no | D．/ |
Lisa doesn’t know ______ she and her friends can do to help the little boy ______ parents have left their hometown for making money.
| A．that; whose | B．how; who |
| C．what; who | D．what; whose |
— How long has Robert __________? — Since 2004.
| A．been to Beijing | B．joined the art club |
| C．studied in this school | D．become a policeman |
________ people________ walking along the beach.
| A．A small number of ; is |
| B．The number of ; are |
| C．A number of ; are |
| D．The number of ; is |
I think Sun Yang was one of _____ in the 2012 Olympic Games．
| A．most popular player |
| B．the most popular player |
| C．the most popular players |
| D．most popular players |
---Look, the man looks like Green.
---It _______ be him, for he _______ to America.
| A．can’t; has gone | B．may not; has been |
| C．mustn’t; has gone | D．can’t; has been |