_____ of the students who took part in the military training is 1450.
| A．A number | B．A lot | C．Lots | D．The number |
There are 51 students in Class Three, _____ failed in the test．
| A．all of which | B．all of them | C．none of whom | D．none of them |
______ happened to be no one in that house when the typhoon hit the area．
| A．It | B．There | C．This | D．That |
________, as long as I’m with nature, I don’t care．
| A．However tough the voyage is | B．Whatever tough the journey is |
| C．However the voyage is tough | D．Whatever the journey is tough |
I would rather buy a house in the countryside than in the city．
| A．it | B．one | C．this | D．that |
Many of the creatures in the movie “Avatar” are not real, but much of __________ happens is attractive．
| A．which | B．that | C．what | D．them |