More people (have)..... fresh water if we only (use).... the ...

★ Conditional Sentence Type 1

More people (have)….. fresh water if we only (use)…. the water we need

A. will have; have use

B. will have; use

C. won’t have; use

D. will have; don’t use

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We (save)…. a lot of trees if we (not waste)……. so much paper

A. will save; waste

B. will save; waste

C. won’t save; don’t waste

D. will save; don’t waste