—Shall I attend my friend's comingofage ceremony, Mum?—No, unless you see to ________ that you will be home before 10:00 P.M.
Not Tom, but I ___to blame for the failure.
All I have learned about the exam____ that three students faileD. A. is B. are C. will be D. have been
All but Tom ___that film before.
“____either you or he to go there?” “_____is.”
____of the land in that district ____covered with trees and grass.