Choose the best answer to complete each sentence.
In most _____ developed countries, up to 50% of _____ population enters higher education at some time in their lives.
A.Ø / Ø
B.the / Ø
C.Ø / the
D.the / a

Choose the underlined part named A, B, C, or D that is incorrect.
Most oxygen atoms have eight neutrons, but a small amount have nine or ten .
A.Most
B.have
C.amount
D.nine or ten

Choose the underlined part named A, B, C, or D that is incorrect.
Dolphins and chimps are like in that they have been shown to have language skills.
A.are
B.like
C.in that
D.have been shown

________ (1)
A.participate
B.participated
C.participating
D.participately

Choose the best answer to complete each sentence.
_____every industry in our modern world requires the work of engineers.
A.Wholly
B.Hardly
C.Most
D.Virtually

Choose the best answer to complete each sentence.
When the electricity failed, he _____a match to find the candles.
A.rubbed
B.scratched
C.struck
D.started

Choose the best answer to complete each sentence.
The book says that the revolution was_____ off by the assassination of the state governor.
A.launched
B.cropped
C.triggered
D.prompted

Choose the best answer to complete each sentence.
He suddenly saw Sue _____the room. He pushed his way_____ the crowd of people to get to her.
A.across/through
B.over/through
C.over/along
D.across/across

Choose the best answer to complete each sentence.
If I were you, I would regard their offer with considerable _____, because it seems too good to be true.
A.suspicion
B.doubt
C.reservation
D.disbelief

Choose the best answer to complete each sentence.
My sister’s confidence in her ability to play the piano was badly _____ by her last music teacher.
A.subsided
B.weakened
C.undermined
D.loosened