After ______ was about then minutes, the teacher gave the students the correct answer to the question.
| A．what | B．that | C．it | D．which |
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 |
It’s quite strange that the man sleeps with his mouth ____ and his eyes _____.
| A．closing; open | B．closed; open | C．closing; opening | D．closed; opened |