The news came as no surprise to me. I _____ for some time that the factory was going to shut down.
| A．knew | B．had known | C．have known | D．know |
Don't leave the waterwhile you brush your teeth.
| A．run | B．running |
| C．being run | D．to run |
Wearrive at six. But I'm sorry we are late.
| A．should | B．were supposed to |
| C．must | D．ought to |
Onlyto use this reading room. Students have another room on the second floor.
| A．are the teachers allowed | B．are allowed the teachers |
| C．the teachers are allowed | D．the teachers allowed |
The police will have tothe room for fingerprints.
| A．check | B．examine |
| C．clean | D．analyze |
once before, after your class I got my visa(签证). So thank you again.
| A．Having rejected | B．Rejected |
| C．Being rejected | D．To be rejected |