On the other side of the street stand more than 180 houses, _____are in poor condition now．

     A． of which half      B． which half of       C． half of them       D． of them half

The farmer keeps 12 _____of cattle． The cattle ____fed on grass and corn．

     A． heads, is      B． head, are           C． heads, are   D head is

After 3 months of sailing eastwards they arrived at Australia, a place _____westerners had never been．

     A． which        B． that                C． where        D．/

A ship sank 20 miles _____the coast of France and more than 60 people lost their lives．

     A． at           B． on           C． off          D． to

Since the mid-1980s growing numbers of Asians have settled in New Zealand, and they _____about 6% of the total population．

　 A． take up　　 B． pick up　 　 C． make up　 D． hold up

 It wasn’t long _____the broken windows were repaired．

     A． before      B． after           C． when         D． since

Mrs Green thinks that _____, the situation would have got worse．

     A． if not dealing with carefully

     B． if having not dealt with carefully

     C． if not having been dealt with carefully

     D． if having not been dealt with carefully

How I regretted ___the hours in the forest, ______I should have studied hard in the classroom．

　　　 A． to waste, when　 B． to waste, where　 　　　　　　　　　　　　　　　　

C． wasting, when　 D． wasting, where

 Trees provide _____from the sun． I mean, they are ______from the sun．

     A． a shelter;   a shelter                             B．  shelter;  shelter

     C． a shelter;   shelter          D．  shelter;  a shelter;

The rainy season makes _______impossible to continue with the repair work．

   A ．/        B． them           C． that                D． it