We must follow Sign ______ to save every drop of water.
#21716
A
B
C
D
推荐题目
—Do you think our basketballers played very well yesterday?—_____. 
#4028
A
They were not nervous at all
B
They were still young
C
They played naturally
D
They couldn’t have done better
—Now, where is my key?—    ! They are waiting for us at the school gate.
#3265
A
Take it easy
B
Come on
C
Take your time
D
Don’t worry