Don't call the emergency number ______ it's a real emergency. ...

[ Time Clauses of Future ]

Don’t call the emergency number ______ it’s a real emergency.

A. unless

B. if

C. as soon as

Select your answer:
A B C D E

Random Topics:

Passive Voice - Present Tenses Present Tense (Negatives and Questions)Gerunds, Infinitives and Participles Grammar - help/have/let/make Adjective ending with ED & ING Definite and Indefinite Articles Sentence Types and Conjunctions Past Perfect and Past Perfect Continuous Tense Modal Speculation WH- Question Words

Other quiz:

Relative Clauses › View

The moment____I learned the results of the art competition was one of the worst times in my life.

A. which

B. when

C. where

D. why

E. who

Grammar › View

Choose the correct form for Passive Voice
The delegation will meet the visitors at the airport
A. The visitors will met at the airport by the delegation
B. The visitors are met at the airport by the delegation
C. The visitors are going to be met at the airport by the delegation
D. The visitors will be met at the airport by the delegation

Identifying Tenses › View

Kathy was doing her homework.
Tom and Leila were watching TV.
I wasn’t doing anything.

A. Past simple

B. Past continuous

C. Past perfect simple

D. Past perfect continuous

Grammar › View

She wishes she ______ more money to buy new computer.

A. has

B. had