Even though very expensive, this kind of engine is highly efficient and needs servicing infrequently.
A. constantly
B. instantly
C. rarely
D. suddenly
查看答案
The woman had been dead for about 3 days and her face was not recognizable.
A. that can be seen
B. that can be recovered
C. that can be recognized
D. that can be covered
They promised to create more jobs for unemployed young people.
A. not being used
B. being out of work
C. poor
D. useful
The old house is enclosed with trees.
A. protected
B. prevented
C. covered
D. surrounded
We were saddened to hear of the death of your mother.
A. mad
B. worried
C. surprised
D. sad
微信支付 
支付宝支付