a. saw  b. has seen   c. had seen  d. sees

　　9.       He came to meet us at the station for fear that we ______ the wrong way.

　　a. take  b. should take   c. took    d. had taken

　　10.   The car looked very dirty, as though it ______ hundreds of miles.

　　a. run  b. runs   c. has run   d. had run

　　11.   The teacher spoke slowly in order that we ______ no difficulty in following him.

　　a. should have  b. had   c. will have    d. didn’t have

　　12.   All magnets behave the same, ______ they large or small.

　　a. how   b. are   c. be   d. were

　　13.   At the beginning he didn’t want to speak English lest he  _____ mistakes.

　　a. will make   b. should make   c. would make   d. can

　　14.   I remember the whole thing as if it ______ yesterday.

　　a. happen  b. happens   c. happened  d. happening

　　15.   She stayed at home for a few days so that she _____ her mother.

　　a. takes care of   b. took care of   c. might took care of   d. might take care of

　　16.   She took up the meter with care for fear that it _____ .

　　a. is damaged   b. to be damaged  c. should be damaged  d. was damaged

　　17.   In many cases the heating effect is neglected as if there ______ no flow of current along the wire.

　　a. are   b. were    c. is    d. being

　　18.   I’ll put the money on the table just in case you ______ it.

　　a. might need   b. would need   c. needed  d. may have needed

　　19.   Providing you ______ the opportunity to go abroad, which country would you want to visit first?

　　a. have   b. will have   c. had    d. have had

　　20.   The business of each day, ______ selling goods or shipping them, went quite smoothly.

　　a. it being  b. was it   c. it was   d. be it