34.They were surprised that a child should work out the problem__________they themselves couldn't.

A. once
B. then
C. while
D. if

35.All of the flowers now raised here have developed from those__________in the forest.

A. once they grew
B. they grew once
C. that once grew
D. once grew

36.I had hardly reached the airport__________he started for his destination.

A. then
B. when
C. the moment
D. than

37.He insisted that we__________the night in his house.

A. would spend
B. shall spend
C. should spend
D. spent

38.At the back of the house, there is a path__________the river.

A. leads to
B. led to
C. leading to
D. has led to

39.Food and rent are more expensive than__________used to be.

A. it
B. that
C. they
D. both

“I went to Shanghai Stadium by bus last Sunday, but the bus was crowded and moved slowly.” “Why__________the underground there for a change next time.”

A. don't you try taking
B. don't try taking
C. not try take
D. not to try taking

按照句意选择下列词组填入空格内come from be good for go up be willing to do sth. be full of on the waylook out set up take out get into trouble

常用易混词辨析与练习（一））lose, miss, leavelose（丢失，弄丢）常用作及物动词，但它只能表示“（在某个地方）丢失了某物”，不能表示“把……丢在/遗忘在某个地方”。miss（发现……不见了）感到不在（即需要时觉得不在）。注意：表示“失踪，找不到的”，be lost和be missing同意。例如：My pen is lost/missing. 另外，miss还作“错过”；“怀念”解。leave（把某物丢在……，把某物忘在……）常用作及物动词，如leave the pen on the desk/at home等。

常用易混词辨析与练习（二）put on, wear, have…on, dress, be dressedput on（穿上，戴上）是一个非延续性动词词组。wear（穿着，戴着）是一个延续性动词。have…on（穿着，戴着）是一个延续性动词词组，与wear同义，但不用于进行时态。dress（穿衣，替……穿衣）表示一个非延续性动作，常用dress sb. 或用dress oneself (=get dressed) 结构，其宾语不能是“衣服”。另外，dress用作不及物动词时，也表示“穿衣”的意思。be dressed（穿着）形式上是dress的被动式，但实际上是表示某人衣着情况，属延续性的状态。常用be dressed in… 结构。