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 |
I found it very difficult to get ________up so early before, but I did finally_________.
| A．used to getting； managed |
| B．accustomed to getting；manage |
| C．used to get； managed |
| D．accustomed to get； to manage |
The old man said the accident________ careless driving
| A．was due to | B．due to | C．is due to | D．has due to |
I don’t think _________ is possible to master a foreign language without much memory work.
| A．this | B．that | C．it | D．its |
—Thank you very much for everything ．You’ve been so helpful.
—__．Just let me know if there is anything else I can do for you．
| A．With pleasure | B．The pleasure is mine． |
| C．Please don’t say so | D．No, thanks |
Please remind your grandpa to take medicine on time, for a man of his age ____be very forgetful．
| A．need | B．must | C．shall | D．can |