[ Tenses ]
The earth … once within 24 hours every day.
A. Rotated
B. Rotates
C. Rotating
D. Rotate

Random Topics:
TOEFL GrammarPrepositions and AdverbsAuxiliary Verbs (be, do, have)Main Idea and Sentence StructureSentence Adverbs & Third ConditionalConnectives (because, due to, owing to, because of)Grammar: SyntaxGrammar - to beGrammar - Punctuation of SentencesModal Auxiliaries and Similar ExpressionsOther quiz:
Simple Present Tense › ViewDo you __________(like) chocolate milk shake?
A. Like
B. Likes
C. Be like
Grammar › View
What (you / do)———- yesterday?
A. you were doing
B. you was doing
C. you doing
D. was do