[ Grammar ]
What is the subject of this sentence:
Hummingbirds beat their wings 60 times a second.
A. Hummingbirds
B. Hummingbirds beat
C. beat their wings

Random Topics:
Conditional SentencesPrepositions and Prepositional PhrasesGrammar and Passive VoiceSimple Present ProgressiveQuantifiers with NounsTOEICPast Continuous Tense & Past ModalsPhrasesSubordinating ConjunctionPunctuationOther quiz:
Idioms › ViewWhat does “to have a sweet tooth” mean?
A. he has a cavity
B. he has a toothache
C. he really loves sweets
Grammar › View
The new chips from Lays are pretty good!
A. Simple sentence
B. Compound sentence
C. Complex sentence
D. None of the above
Compound Sentences › ViewDo you want to try these shorts, _____ do you want to try on those blue ones?
A. and
B. but
C. or
Grammar › View
I enjoy reading this new magazine. ___, it has good articles.
A. Moreover
B. Nevertheless
C. However
