[ Grammar ]
Which word fits in the blank?
Dolphins live in groups, and ______ take care of each other.
A. them
B. they
C. these
D. his

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DescriptionsVocabulary and DefinitionsMuch, many, a lot of, a few, a littleModal Verb in Passive VoiceGerund & InfinitivesSubject, Object, Possessive Pronoun and Possessive AdjectivesConditional Sentences Type I, IIQuantifies and Modals of DeductionNoun PhrasePresent Simple and Modal VerbsOther quiz:
Adverbs › ViewThe boys crossed the street cautiously.
The adverb tells us ________ the action was performed.
A. how
B. when
C. where
Conjunctions › View
It looks ……….. it is going to snow.
A. Because
B. As if
C. Nonetheless
D. Unlike
Grammar › ViewWhich word is a singular noun?
A. two dogs
B. cats
C. dogs
D. cat
Grammar › View
As soon as Terry woke up, she started asking her parents and friends if they had any empty soda cans. By now, Terry has thirty cans, and they ___________ up a big plastic bag.
A. fills
B. filling
C. fill
