題目：

41.Either of the plans ______equally dangerous.

42.The police ______the murderer everywhere when he suddenly appeared in a theatre.
searching????????? searching for??
searching???????? searching for
?
43.Your trousers ______dirty, you must have______ washed.
it???? it???? them??? them
?
44.The Olympic games ______held every four ______.
years??? years??? year???? year
?
45.He is the oly one of the students who______elected.
? ???
?
46. ______a good enough price for this book
A.Two yuans are?B.Two yuan are??? C.Two yuans is???? D.Two yuan is
?
47.No bird and no beast ______in the lonely island
seen???? seen????
?
48.Every means ______prevent the water from______
used to polluting?????? B. get used to polluting
used to , polluted????? used to ,being polluted
?
49.Each of the ______in the ship.
ger has his own room???? B. passengers have their own room
ger have their own room?? s has his own room
?
50.What we need ______good textbooks.
?????? ?????

【答案解析】

?41-45 BBCBD????? 46-50 DBDDB