The question______new measures should be taken to control the terrible air pollution is______puzzles scientists a lot.
| A．that; what | B．which; that | C．what; what | D．which; that |
Though the girl ____ to learn Japanese, she couldn’t catch up with her classmates.
| A．made effort |
| B．made all her efforts |
| C．took every effort |
| D．gave her efforts |
It’s important for us to employ a word or a phrase according to the _____ in language studies.
| A．situation |
| B．expression |
| C．condition |
| D．translation |
I told Sally how to get here, but perhaps I ___ for her.
| A．had to write it out |
| B．must have written it out |
| C．should have written it out |
| D．ought to write it out |
____ telephone is working here. You have to get them____.
| A．Both; repaired |
| B．Neither; repaired |
| C．Either; to repaired |
| D．All; to repair |
While ___ along the street, I met an old friend of mine.
| A．I walking |
| B．was walking |
| C．I am walking |
| D．walking |