定语从句：
1.February is the month________is usually the coldest.
A.the weather B.whose weather C.its weather D.when the weather
注：我选择了B，答案选D，完全不会分析题目。
2.If you are walking away from a clocktower,you will hear the ticking of the clock fade to a point______it cannot beheard.
A.which B.what C.where D.how
----我选A，答案选择C
3.Solid-fuel engines are simpler thanliquid-fuel engines,________have important uses.
A.both of them B.both C.both of which D.both all
----我选C，答案对了，但不会分析，是撞对的！
4.Primary products are the rawmaterials_____from which manufactured goods are made.
A.by B.on C.from D.in
---我选A，答案选C
5.He mainly uses the word strange to talkabout the ways_______people dress and wear their hair.
A.in which B.by which C.in that D.by that
---我选C，答案选A
6.Mr.Smith will move into his new housenext Monday,______it will be completely finished.
A.by that time B.by which C.by then D.by the time
--我选A，答案选B
7.To avoid the various foolish opinions______mankindis prone,no superhuman genius required.
A.with which B.of which C.from which D.to which
---我选B，答案选D
8.______is often the case with a newidea,much preliminary activity and optimistic discussion produce no concreteproposals.
A.That B.It C.Which D.As
--我选C，答案选D