I had too much work to do last night. I didn’ t go to bed __11 o' clock .A.in B.until C. For.
—_______ can I keep the books?—Two weeks.
My mother often tells me _______ my classmates when they need.
Do you prefer _______?
You should _______ the doctor’s advice and _______ the medicine on time.
Sally sings pretty _______ and she is also _______ at dancing.