[ Tenses ]
He _____________ his sister’s homework yesterday.
A. did
B. does
C. doing
D. do

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Tenses › ViewAt this time yesterday, we ___ along the Mekong River.
A. were cycling
B. cycle
C. cycled
D. have cycled
Grammar › View
‘Do you like maths?’ ‘Not always, but ____ it right now because it isn’t too hard.’
A. I enjoy
B. I’m enjoying
C. I’m not enjoying