Joe Jones, the eldest of the eight children, had to ________ out of high school at the age of 16 to help his father on the farm.
A．leave B. drop C. fall D. go
He missed _______ when he was in Africa.
A. killing B. to be killed C. to kill D. being killed
In our town, wood can ___________ a fire.
A. be used to make B. be used to making
C. use to make D. used to making
In the past five years China ________ great _________.
A. made, progress B. has made, progresses
C. made, progresses D. has made, progress
They talked for about an hour of things and persons _____ they remembered in the school.
A. which B. that C. who D. whom
Don’t be in a hurry. We are supposed ____________ this problem step by step.
A. solving B. to solving C. to solve D. solve
