His father will be back from London ____ a few days.
| A．since | B．in | C．on | D．after |
—Why is it ________ so many people enjoy eating on the run?
—Of course, the most obvious answer is that fast food is fast.
| A．that | B．which | C．what | D．how |
— Why did the dinner party start so late last night?
— It was _____ that caused him to serve dinner an hour later than usual.
| A．we were late | B．we being late | C．our being late | D．because we were late |
---I can’t find Mr. Brown. Where did you meet him this morning?
---It was in the hotel _______he stayed.
A thatB which C where D when
Was it in 1969 _____ the American astronaut succeeded_____ landing on the moon?
| A．when；on | B．that；on | C．when；in | D．that：in |
It is exactly _____we behave _____has changed the world.
| A．which; that | B．how; that | C．how; what | D．what; that |