---What did our teacher do?---He raised his arm as a(n)        for us to stop.
#5045
A
signal
B
advice
C
evidence
D
design
推荐题目
The ________ doctors are carrying ________ boxes. 
#6251
A
woman; paper
B
women; papers
C
woman; paper’s
D
women; paper
She found a lot of______were______.
#7428
A
passers-by; grown-ups
B
passers-bys; growns-up
C
passers-bys; grown ups
D
passers-by;growns up