—— Do young people in that country like to be engaged in teaching?
—— Not really, for teachers strongly feel that school systems____ them ____.
| A．let; down | B．let; off | C．let; go | D．let; alone |
from the moon, our earth, with water seven percent of its surface, appears as a “blue ball”.
| A．Seeing…covered | B．Seen…covered | C．Seeing…covering | D．Seen…covering |
Nuclear energy may be dangerous if
| A．controls | B．not controlling | C．not controlled | D．controlled |
All of us, Jane，will make a trip to London next month.
| A．include | B．included | C．including | D．is included |
Mike lost the pen he paid 10 yuan.
| A．to which | B．which | C．for that | D．for which |
It’s dangerous to get close to the building now .
| A．being constructed | B．constructed | C．been constructed | D．to be constructed |