The police set about arresting the suspect ________ they found enough evidence to prove him guilty.
| A．immediate | B．as long as |
| C．the moment | D．as far as |
We arrive at six. But I’m sorry we are late.
| A．should | B．were supposed to | C．must | D．ought to |
Only to 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 to the 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 |
Who is the man a blue shirt? I have never seen him before.
| A．is wearing | B．dressed up | C．dressed in | D．worn |