[ Present and Future Tenses ]
She ………………………….. her homework.
A. haven’t understood
B. don’t understand
C. doesn’t understand
D. isn’t understanding

Random Topics:
Tenses & PassiveHelpful Phrases must/shouldInterrogative PronounsModal and Auxiliary VerbsQuestion TagsPast ContinuousVocab and GrammarSynonym and AntonymModals and ResponsibilitiesOther quiz:
Gerunds and Infinitives › ViewAs doctors continue (search) _______ for a cure for the common cold, they have found some things that make people more vulnerable to catching a cold.
A. to search
B. searching
C. to search
D. “to search” and “searching”
Grammar and Vocabulary › View
These are the critics’ opinions.
A. reviews
B. season
C. trailers
D. subtitles
Homophones › ViewI’m going to _____ it on eBay.
A. Cell
B. Sell
Grammar › View
A:Are they ___ eat some delicious cakes? B:No, they ___. The cakes are too sweet(甜的)for them.
A. go to; don’t
B. going to; aren’t
C. went to; didn’t
D. go to; aren’t
