— useful suggestion he offered to us!
—You’re right. It was of great .
| A．How, value | B．What, value |
| C．What a, value | D．What a, valuable |
Can you tell me what you __________ when the teacher came into the classroom?
| A．did | B．do | C．are doing | D．were doing |
I had __________ unusual experience last week.
| A．a | B．an | C．the | D．/ |
Maybe you should __________.
| A．call on her | B．call him at | C．call him up | D．call up her |
Our physics teacher told us light __________ faster than sound last term.
| A．travels | B．travel | C．travelled | D．travelling |
Xiao Li was supposed __________ her homework before nine o’clock. But she couldn’t.
| A．to finish | B．to finishing | C．finish | D．finishing |