问题
选择题
The floor is quite wet, and my teacher told us _____ quickly.
A. to mop up it
B. mopped it up
C. to mop it up
D. mop it up
答案
C
The floor is quite wet, and my teacher told us _____ quickly.
A. to mop up it
B. mopped it up
C. to mop it up
D. mop it up
C