About how many elements _____ make up most of the substances we meet in everyday life
A.it is which | B.what it is | C.is it that | D.it is that |
____ they did not believe him, what would they do then?
A.Suppose | B.Supposed | C.I suppose | D.You suppose |
John shut everybody out of the kitchen ____ he could prepare his grand surprise for the party.
A.which | B.when | C.so that | D.for |
一Tell us, Mark ,what is the ____ of the American Civil War?
一 Well, is it because the black slaves wanted freedom?
A.effect | B.cause | C.result | D.reason |
So much of interest ______that most visitors simply run out of time before seeing it all.
A.offers Beijing | B.Beijing offers | C.does Beijing offer | D.Beijing does offer |
My sister, an inexperienced rider, was found sitting on the bicycle ______to balance it.
A.having tried | B.trying | C.to try | D.tried |