1. ___A___plastics,the washing machine is light in weight.
A.made of B.making at C.to making of D. To be made of
选项应该和the washing machine 是主谓关系,所以选A
2. __C____from the hill,the town looks magnificent.
A.seeing B.having seen C.seen D.to see
主语是the town,和see这个词应该是被动的关系,所以选C
3. _A_____that we were late,we began to run.
A.knowing B.to know C.we knew D.as knowing
know发出这个动作的主语是we,独立主格,所以选ing形式.
4. __C____for nearly seven years in African forest,he decided to return home.
A.worked B.working C.having worked D.being worked
主句里decided是过去时,所以前面的从句应该是完成时,而且有标志词for,所以选C
5. ___D___our football ream won in the 12th Asia Games made us very.happy.
A.if B.what C.whether D.that
赢得足球比赛这件事总体做主语,先行词只能是that.所以选D