An accident______ on this road last week.
A. has been happened B. was happened
C. is happened D. happened
Tom is often made ______for twelve hours a day by the boss.
A. work B. working
C. to work D. to be working
I don’ t mind _____the door.
A. you open B. your open
C. your opening D. yours opening
There are some dangerous fish in the river, and I’ve warned Jack______ here.
A. not to swim B. to not swim
C. swim not to D. to swim not to
The old man _____live with his wife, but now he ______alone after she died.
A. used to, is used to live
B. used to, is used to living
C.was used to , used to live
D. did used to , is use to live
I don’t dare ______ in front of the class
. A. sing B. to sing C. sings D. singing
