The monument was built in honor of the explorer who was believed _____ the river.
| A．to have discovered | B．to have been discovered |
| C．to discover | D．having been discovered |
---_________________
---Thank you. I certainly will.
| A．Happy New Year to you! | B．Don’t forget to post the letter! |
| C．May I help you? | D．Please remember me to your family. |
When you go by train, please see to it_______ you take an express, _______ that stops only at big stations.
| A．that, one | B．/, the one | C．that, it | D．/, it |
She had to lie to the company and ______ a man in order to get a job, ______ rather strange.
| A．pretending as, looked | B．pretended to be, looking |
| C．pretending as, was looked | D．pretended to be, looked |
The little girl couldn’t ________ the problem. She wasn’t ________ clever.
| A．get through, very | B．make out, much |
| C．work out, that | D．get across, so |
---Mike must have known that.
---No, he ________. How _______ he?
| A．mustn’t, must | B．may not, might | C．couldn’t, can | D．needn’t, need |