Topics: 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:
Random Topics:
Phrasal Verbs and GrammarPast Perfect SimpleAdjectives or AdverbsSimple Past/Past ProgressivePresent simple or Past simpleClauses of ReasonPast Simple vs Present SimpleConditional Sentences and Verb FormModals of Obligation and NecessityVocabulary : Coming & GoingOther quiz:
Tenses › ViewWhat time ________ she get from work?
A. do
B. dos
C. does
Grammar › View
Do you capitalize the first word in a sentence?
A. Yes
B. No
C. Sometimes
D. Depends what kind of sentence