Những bài trắc nghiệm

1/ Political demonstrations on America campuses have abated ......... .
a/ after 1970 c/ for 1970
b/ in 1970 d/ since 1970
2/ Ancient civilizations such as those of the Phoenicians and the Mesopetamians ....... .
a/ use to trade c/ used to trade
b/ is used to trade d/ was used to trade
3/ Most Americans don't object ....... them by their first name.
a/ that I call c/ for calling
b/ to my calling d/ that I am call
4/ North Carolina is well known not only for the Great Smoky Mountains National Park .......... for the Cherokee Indian settlements.
a/ also c/ but also
b/ and d/ because of
5/ General Grant had General Lee ....... him at Appomattox to sign the official surrenderof the Confederate forces.
a/ to meet c/ meet
b/ met d/ meeting
6/ If a ruby is heated it .......... temporarily lose its color
a/ would c/ does
b/ will d/ has
7/ ............ small specimen of the embryonic fluid is removed from a fetus, it will be possible to determine whether the baby will be born with birth defects.
a/ A c/ If a
b/ That a d/ When it is a
8/ All of the people at the AAME conference are ....... .
a/ mathematic teachers c/ mathematics teacher
b/ mathematics teachers d/ mathematic's teachers
9/ If it ..... more humid in the desert of the Southwest, the hot temperatures wuold be unbearable
a/ be c/ was
b/ is d/ were
10/ Prices for bikes can run ........ $250.
a/ as high as c/ so high to
b/ as high to d/ so high as

1/ d/since1970
2/ c/use to trade
3/ b/to my calling
4/ b/and
5/ b/met
6/ b/will
7/ c/if a
8/ b/ mathematics teachers
9/ c/was
10/ a/as high as

11/ The duties of the secretary are to take the minutes, mailing the correspondence, and calling the members before meetings.
12/ If biennail were planted this year, the will be likely to bloom next year
13/ The value of the dollar declines as the rate of inflation raises.
14/ Even though a member has drank too much the night before, the counselors at Alcoholics Anonymous will try to convince him or her to sober up and stop drinking again.
15/ There have been little change in the patient's condition since he was moved to the intensive care unit.
16/ Because of the movement of a glacier, the form of the Great Lakes was very slow.
17/ If it receive enough rain at the proper time, hay will grow quickly,as grass.
18/ Psychology Today is intersting, informative, and it is easy to read.
19/ Despite of the pills that are available, many people still have trouble sleeping.
20/ The new model costs twice more than last year's model.

1/ d/ đúng gòi ^^
2/ c/ đúng nhưng hình như thiếu ^^ ( used to trade )
3/ b/ đúng gòi ^^
4/ b/ sai T_T sửa lại là c/ but also. Vì "not only" đi với "but also" bạn nên coi kỹ hơn ^^
5/ b/ sai T_T sửa lại là c/ meet. Cấu trúc S + have + O + to infinitive chúc bạn làm tốt những bài sau nếu gặp câu này
6/ b/ đúng gòi ^^
7/ c/ đúng gòi ^^
8/ b/ chính xác ^^
9/ c/ sai T_T sửa lại là d/ were. If + S + past subjunctive ( như past nhưng to be = were với mọi S )+ a clause ( fải là would + bare infinitive )
10/ a/ đúng gùi ^^

1d, 2a, 3a (chắc sai rồi), 4c (cái này là so... that...), 5a(ko hiểu gì hết).
Mấy câu còn lại mai làm nghen, nhức mắt wa'