[ Present Tense ]
Mum must be tired. She _______ the house all day.
A. is cleaning
B. cleans
C. has been cleaning
D. has cleaned
Select your answer:
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Grammar › ViewWe ………………… $200 on food this month already.
A. Spend
B. Spent
C. Have spent
Expressing Obligation and Modals › View
Which one of these sentences is expressing obligation?
A. Andy has to help his father feed the chickens after school
B. Andy should help his father feed the chickens after school
C. Andy wants to help his father feed the chickens after school
D. Andy will help his father feed the chickens after school