Question

[hoàng thanh trúc]

1. By the midle of the 21st century,people in developing countries.....more renewable energy

A.use B.will be using C.used D.have used

2. Alternative sources of energy...developed in the near future.

A.is B.was C.has been D.will be

3. Why is it called a...source? - because it can be replaced easily and quickly

A.effective

B.specific

C.renewable

D.non- renewable

4. Hydro power is ... because dams cannot be built in certain areas

A.limited

B.unlimited

C.abundant

D.enough

Answer 1

[Tử Đằng]

1. By the midle of the 21st century,people in developing countries.....more renewable energy

A.use B.will be using C.used D.have used

2. Alternative sources of energy...developed in the near future.

A.is B.was C.has been D.will be

3. Why is it called a...source? - because it can be replaced easily and quickly

A.effective

B.specific

C.renewable

D.non- renewable

4. Hydro power is ... because dams cannot be built in certain areas

A.limited

B.unlimited

C.abundant

D.enough