Unless more people .... (use) public transport, air polution will ...

[ The First Conditional (if/unless) ]

Unless more people …. (use) public transport, air polution will increase.

A. use

B. will use

C. ‘ll use

D. uses

Select your answer:
A B C D E

Random Topics:
Past Simple Vs. Present Perfect Relative Pronoun Adjective Clause Comparatives and Superlatives Personification Family Members and Present Simple Adjective + to + Verb Must Vs Have to Conditional Sentence

Other quiz: Some vs. Any

I need ___ new clothes.

a. any

b. some

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