Choose the answer among A, B, C, D to complete each of the sentences below:
________ is produced from the heat stored in the earth's core.
A.Water energy
B.Solar energy
C.Geothermal energy
D.Nuclear energy

Điền đáp án đúng vào ô trống
Hộp thứ nhất đựng $\dfrac{2}{5}$  kg kẹo, hộp thứ hai đựng nhiều hơn hộp thứ nhất $\dfrac{1}{5}$ kg kẹo. Hỏi hộp thứ hai đựng bao nhiêu ki-lô-gam kẹo?
Đáp án: 
(kg)
A.3
B.5
C.
D.

Điền đáp án đúng vào ô trống
Tính (rút gọn kết quả về phân số tối giản):
 
2
15
+
4
15
+
4
15
=
A.2
B.3
C.
D.

Choose the answer among A, B, C, D to complete each of the sentences below:
They volunteer to take care of children who have been ______ by the AIDS epidemic.
A.orphaned
B.supported
C.suffered
D.left

Choose the answer among A, B, C, D to complete each of the sentences below:
There are rumors of buried ______ in that old house.
A.treasure
B.belongings
C.tomb
D.chamber

Choose the answer among A, B, C, D to complete each of the sentences below:
He was pulled off an extraordinary ______ in completing the voyage single-handedly.
A.feat
B.feature
C.feast
D.fervour

Choose the answer among A, B, C, D to complete each of the sentences below:
The World Cup is a football ______ which is open to all countries.
A.competition
B.occasion
C.involvement
D.participation

Choose the answer among A, B, C, D to complete each of the sentences below:
Oil, coal and natural gas are ______ fuels made from decayed material from animal or plants.
A.smokeless
B.unleaded
C.fossil
D.solid

Choose the answer among A, B, C, D to complete each of the sentences below:
I like him ______ for his shyness.
A.by far
B.all the better
C.far better
D.furthermore

Choose the answer among A, B, C, D to complete each of the sentences below:
My parents lent me the money. _____, I couldn't have afforded the trip.
A.Therefore
B.However
C.Only if
D.Otherwise