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You should get the plumber to make sure there are no cracks ………….. the pipes.

A. in B. for C. on D. at

Remember to turn……………..the faucets and the light before leaving.

A. of B. off C. at D. on

Mrs. Mi gives Mrs. Ha advice ………. how to save water.

A. of B. off C. at D. on

Why don’t we use a shower instead …………a bath?

A. of B. off C. at D. on

It is possible to store solar energy …………….. a number of days.

A. of B. for C. about D. with

Solar panels are installed on the roof of a house to receive the energy …………. the sun.

A. from B. for C. about D. with

Companies now realize that consumers want products that will not only work effectively, ……………. also save money.

A. and B. but C. or D. so

Lighting accounts ……………….. 10 percent to 15 percent of the electricity bill.

A. of B. for C. about D. with

I think we …………. turn off the lights.

A. shall B. should C. will D. would

In western countries, electricity, gas, and water are not luxuries ……………. necessities.

A. and B. but C. or D. so

Komorebi
8 tháng 5 2020 lúc 13:29
You should get the plumber to make sure there are no cracks ………….. the pipes.

A. in B. for C. on D. at

Remember to turn……………..the faucets and the light before leaving.

A. of B. off C. at D. on

Mrs. Mi gives Mrs. Ha advice ………. how to save water.

A. of B. off C. at D. on

Why don’t we use a shower instead …………a bath?

A. of B. off C. at D. on

It is possible to store solar energy …………….. a number of days.

A. of B. for C. about D. with

Solar panels are installed on the roof of a house to receive the energy …………. the sun.

A. from B. for C. about D. with

Companies now realize that consumers want products that will not only work effectively, ……………. also save money.

A. and B. but C. or D. so

Lighting accounts ……………….. 10 percent to 15 percent of the electricity bill.

A. of B. for C. about D. with

I think we …………. turn off the lights.

A. shall B. should C. will D. would

In western countries, electricity, gas, and water are not luxuries ……………. necessities.

A. and B. but C. or D. so

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