The reason why this kind of machine is popular with users is that it will work in ______ temperature.
There are 51 students in Class Three, _____ failed in the test.
______ happened to be no one in that house when the typhoon hit the area.
________, as long as I’m with nature, I don’t care.
I would rather buy a house in the countryside than in the city.
Many of the creatures in the movie “Avatar” are not real, but much of __________ happens is attractive.