Choose the answer among A, B, C, D to complete each of the sentences below:
He built _____ his collection over a period of ten years.
A.in
B.on
C.up
D.into

Choose the answer among A, B, C, D to complete each of the sentences below:
He has...... extensive research into renewable energy sources.
A.cared for
B.carried out
C.turned on
D.taken over

Choose the answer among A, B, C, D to complete each of the sentences below:
Pressure on natural resourses will _______ as we face a population explosion.
A.decrease
B.raise
C.decline
D.increase

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.unless
B.despite
C.whereas
D.yet

Choose the answer among A, B, C, D to complete each of the sentences below:
Jane is a very sociable girl. She likes parties and ______.
A.rituals
B.traditions
C.ceremonies
D.celebrations

Choose the answer among A, B, C, D to complete each of the sentences below:
Scientists say that the main reason ______ population explosion is an increase in birth rates.
A.in
B.for
C.of
D.to

Choose the answer among A, B, C, D to complete each of the sentences below:
Jane is going to go abroad next month and she's having a ________ party on Sunday.
A.wedding
B.anniversary
C.farewell
D.birthday

Choose the answer among A, B, C, D to complete each of the sentences below:
We may win, we may lose - it's just the _____ of the draw.
A.strike
B.chance
C.odds
D.luck

Choose the answer among A, B, C, D to complete each of the sentences below:
The family chose cremation rather than ______.
A.funeral
B.embalmment
C.burning
D.burial

Choose the answer among A, B, C, D to complete each of the sentences below:
My brother takes photograph _____ a hobby.
A.as
B.in
C.with
D.for