He is doctor at all. Don’t trust him.
| A． no | B． not | C．any | D．a |
Newton was sitting under an apple tree ______ an apple fell onto his head.
| A．when | B．while | C．after | D．before |
The clock has just _________ twelve. All the teachers should stop _________ and let the students have a rest.
| A．hit; to teach | B．beaten; teaching | C．struck; teaching | D．knocked; to teach |
A thunderstorm is likely to come. Let’s hurry up so as not to __________ it.
| A．catch | B．be caught in | C．be caught | D．catch in |
Although their new factory building is still under construction, we have already placedorder for 200 pairs of shoes.
| A．the; an | B．a; an | C．/; an | D．/; / |
----Have you worked in this company for a long time?
---- Yes, since I _________ from the college.
| A．has graduated | B．graduates |
| C．had graduated | D．graduated |