—Can you stay for dinner? —I’d love to, but I _______ go to the airport to meet my aunt.
| A．will | B．would | C．have to | D．had better |
The world’s population is getting larger and larger, so scientists are trying to _______ new ways to solve the food problem.
| A．catch up with | B．keep up with | C．come up with | D．make up with |
Now more and more people ________ sending e-mails ________ letters.
| A．prefer to; to writing | B．prefer to; to write |
| C．prefer; to writing | D．prefer; to write |
He is ______ excited to hear the good news.
| A．too more | B．too far | C．far too | D．more too |
.Not all the students sitting in the back row can see the words on the blackboard _________.
| A．enough clear | B．clear enough | C．clearly enough | D．enough clearly |
---Our club has just finished an _______ documentary.
---Really? Can I have a quick look at it now?
| A．10-minutes long | B．8-minutes long | C．10-minute-long | D．8-minute-long |