[ Grammar ]
Parents ____________ leave their children alone at home all times.
A. have not
B. do not
C. must not
D. ought not to
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Present and Past Tenses › ViewWhich helping verbs do we use to make a question in the present?
A. do/does
B. did
Gerunds As Objects of Prepositions › View
Tom is prounf of…………….his free time to the charity.
A. donate
B. donating
C. to donate
D. donated
Grammar › ViewThe car ____ he bought last year has already broken down twice.
A. who
B. which
C. whose
Grammar › View
What (you, do) ………..when you ………….(hear) that noise?
A. were you doing/ heard
B. you were doing / heard
C. you did/ heard
D. you did / were hearing