He was last seen _________in his office at about 7:15 p.m..
| A．work | B．working |
| C．to work | D．worked |
Bob a lot since we met last year.
| A．changes | B．changed |
| C．has changed | D．will change |
一 you please buy a newspaper for me？
一Sure.
| A．Could | B．Must |
| C．Need | D．May |
Bill is very popular and he is student in the class.
| A．outgoing | B．more outgoing |
| C．most outgoing | D．the most outgoing |
一 is the model plane made of ?
一It's made of used wood and glass.
| A．What | B．When |
| C．Who | D．Where |
Paper cutting looks very easy， it may be difficult to do.
| A．so | B．but | C．or | D．for |