238. --- Ought he to get down to his work at once?
--- Yes, he _____.
ought B. ought to C. must D. should to
I am interested in traveling. It is ______ but ______.
| A．interesting; tiring | B．interested; tired |
| C．interesting; tired | D．interested; tiring |
The windows haven’t cleaned for a long time. They need ______.
| A．to clean | B．to be cleaned | C．cleaning | D．B and C |
Our teachers are really ______. They often work in their office far into the night.
| A．open-minded | B．hard-working | C．self-confident | D．warm-hearted |
Visitors were at the pictures that the guide showed.
| A．amazed; amazing | B．amazed, amazed |
| C．amazing, amazing | D．amazing, amazed |
His grandparents were born in ______ Qing Dynasty, while he was born in ______ 1920’s.
| A．a; an | B．/;the | C．the; the | D．a; the |