[ Tenses ]
When I ____ a little girl, I used to climb trees and go swimming in the river with my friends.
A. am
B. was
C. have been
D. had been

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Grammar - used toQuantifiersPossessive PronounsModals of DeductionModal Auxiliary VerbsQuantifiers & Modal VerbsPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTGrammar TOEFLSo - Too - Either - NeitherVerb ConjugationOther quiz:
Grammar › ViewBut if you throw away a plastic bottle, it _____ decompose for one million years.
A. will
B. won’t
Grammar › View
A correction pen is used for ____ your writing mistakes.
A. cover
B. covered
C. covering
D. to cover