[ Grammar for TOEFL ]
Only for a short period of time _____ run at top speed.
A. cheetahs
B. do cheetahs
C. that a cheetah can
D. can
Select your answer:

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Simple Present ProgressiveNoun ClausesPronounciation and GrammarPresent and Past Simple PassivePresent simple, Present continuous, Singular, PluralModal Verbs in ConditionalsPresent or Past TensesNoun Phrases and AdverbialsUncountable NounsIdentifying Sentence TypesOther quiz:
Reported Speech › ViewI’m going crazy! I can’t ______ so much confusion!
A. look up
B. keep up with
C. get over
D. give up
E. put up with
Grammar › View
I hope to see you __ my birthday!
A. on
B. at
C. in