Choose the answer among A, B, C, D to complete each of the sentences below:
______ energy sources include water and wind power.
A.Friendly environment
B.Environmental friendly
C.Friendly environmental
D.Environmentally friendly

Choose the answer among A, B, C, D to complete each of the sentences below:
The use of computer aids in teaching, ______ the role of teachers is still very important.
A.whereas
B.unless
C.yet
D.despite

Choose the answer among A, B, C, D to complete each of the sentences below:
It’s important for the developed countries to reduce energy _______ as much as possible.
A.destruction
B.consumption
C.exhaustion
D.waste

Choose the answer among A, B, C, D to complete each of the sentences below:
They ________ a close friendship at university.
A.created
B.became
C.promoted
D.formed

Choose the answer among A, B, C, D to complete each of the sentences below:
Many university students _______ spent their summer vacations teaching illiterate people to read and write.
A.freely
B.gradually
C.voluntarily
D.consciously

Choose the answer among A, B, C, D to complete each of the sentences below:
Sputnik was the first ______ satellite made by the USSR.
A.manned
B.natural
C.artificial
D.live

Choose the answer among A, B, C, D to complete each of the sentences below:
There is considerable ______ over the safety of the treatment, so it hasn't been applied yet.
A.disagreement
B.agreement
C.agree
D.disagree

Choose the answer among A, B, C, D to complete each of the sentences below:
We had to ______ the noise from the building site next door for three months.
A.give up
B.put up with
C.stand up to
D.look up to

Choose the answer among A, B, C, D to complete each of the sentences below:
I agree with most of what you said, but I can't _____ your idea of letting children leave school at 14.
A.put up with
B.go along with
C.keep up with
D.catch up with

Choose the answer among A, B, C, D to complete each of the sentences below:
After landing, the team members were greeted like ______ heroes.
A.conqueror
B.conquest
C.conquering
D.conquer