1.Many handprints in the caves are decorated with strange pa

1.Many handprints in the caves are decorated with strange patterns,____is yet unknown.A.the significance of which B.the significance of that C.their significance D.its significance 我选B,
2.As a matter of fact,Saudi Arabia's oiil reserves____those of Kuwait.A.are the second to B.are second to only C.are second only to D.are the second only to 我选A,
3.Nobody dare ask him about his intention,___?A don't they B.dare they C.daren't they D.do they 我选A,
4.If the work ___by the end of this month is delayed,the construction company will be fined.A.completed B.to complete C.to be completed D.being completed 我选A,
5.Children may not be especially good at the sport,but they have fun___it.A.to playing B.for playing C.to play D.of playing我选C,
6.The chief food eaten in any country depends largely on___best in its climate and soil.A.that grows B.what grows C.what growing D.what is grows 我选A,
7.___radio was invented by___Italian named Maconi.
A.The;an B.a;the C.The;the D.A;an 我选C,
8.Making a suggestion is one thing while putting it into practice is quite___.A.the other B.another C.the other thing D.other thing 我选C,
9.Seasons south of the Equator are the opposite___those north of it.A.to B.from C.of D.on 我选A,
10.Only when___more information has been obtained,will it be possible to lan a manned trip to Mars.A.many B.a lot C.a lot of D.quantities of 我选C,