[ Modals of Obligation & Prohibition ]
David _____ watch his little sister when his parents go out.
A. have to
B. has to
Select your answer:
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Passive Voice, Modals of Deduction and First ConditionalAdverbs of Frequency and Everyday ActivitiesIN, ON & ATTenses and FoodPassive and Active SentencesGRAMMAR - Could / Could notduring, for, whileArticle & PrepositionSimple Present and Present Continuous Tenses-ed or -ingOther quiz:
Vocabulary › ViewPRECAUTION
A. PREVENTABLE MEASURE
B. ALREADY PRESENT
C. 1ST OR MORE SIGNIFICANT
Grammar › View
You shouldn’t spend too much time on computer __________ it is harmful to your eyes.
A. as
B. when
C. although