Paul, stand ________ your feet. [ ]
A. in
B. out
C. to
D. on
D
My headache _____ me．I thought it was going away, but it is getting worse and worse．
A．kills
B．is killing
C．was killing
D．killed
一个数由2个十，7个十分之一，8个千分之一组成，这个数写作______．
