The tetracyclines, _____ antibiotics, are used to treat infections. ...

[ Grammar for TOEFL ]

The tetracyclines, _____ antibiotics, are used to treat infections.

A. are a family of

B. being a family

C. a family of

D. their family is

Select your answer:
A B C D E

Other quiz:

Modals and Comparative Superlative › View

the princess is ………….. the witch

A. more beautiful than

B. most beautiful

Conditional Sentence - Type 1 › View

Jean will borrow some books if she ______ to the library.

A. go

B. goes

C. will go

D. is going

Tenses › View

‘We were studying in Bangkok’

A. Past Simple

B. Past Continuous

C. Future Perfect

D. Present Continuous

Grammar: Simple Past and Past Continuous › View

You look tired. I think you should go to _____ bed early.

A. the

B. ∅

C. a