Not until the Triassic Period _____.
A.did develop the first primitive mammals
B.the first primitive mammals did develop
C.the first primitive mammals develop
D.did the first primitive mammals develop

The civilization of the ancient Egyptians was brought about by _____.
A.the highly-developed writing, painting, architecture and crafts
B.the rich alluvial soil of the Nile
C.Egypt's first ruling family
D.gypt's trade with the outside world

We know the Egyptian Empire was powerful from the _____.
A.long period it extended its power and influence
B.way its army fought with other invaders
C.trade and business done with other nations
D.number of crops grown in one season

The writer said that the annual flooding of the Nile _____.
A.needed to be controlled
B.caused an influx of foreign traders
C.led to the discovery of new mines
D.helped to develop the arts

I. Choose A, B, C, or D that best completes the sentence.
He was ____ he was often willing to share all of what he had got.
A.such a generous man as
B.such a generous man that
C.so a generous man that
D.a so generous man that

I. Choose A, B, C, or D that best completes the sentence.
I was beginning to feel alarm, but kept it to myself _____ our two friends.
A.so as not to worry
B.so that did not worry
C.so as to I did not worry
D.not in order to worry

I. Choose A, B, C, or D that best completes the sentence.
I always keep fruit in the fridge ____ insects off it.
A.order to keep
B.as to keep
C.so as to keep
D.so as to keeping

__________ (12)
A.extra
B.left
C.spare
D.remaining

I. Choose A, B, C, or D that best completes the sentence.
____ the students had successfully completed their exams, their parents rewarded their efforts by giving them a trip to Paris.
A.Due to the fact that
B.Thanks to
C.Because of
D.Due to

II. Error Identification
Scientists (A) have said that (B) global production of (C) oil is set to peak in the next four (D) year.
A.have said
B.global
C.oil
D.year