Birds singing is sometimes a warning to other birds        away.
#88619
A
Stay
B
staying
C
stayed
D
to stay
推荐题目
The man fled aboard, trying to avoid ________.
#97195
A
catching
B
being caught
C
to catch
D
to be caught
Noticing some passers-by gathering on the road, Jill looked forward _______ what was the matter.
#96138
A
to find out
B
to finding out
C
only to find out
D
finding out
---Shall we go swimming?   ---Ok, I’ll just go and get     .
#97491
A
changed
B
to change
C
to be changed
D
changing
With so many exercises ________, the students are having a hard time.
#88824
A
finished
B
finishing
C
to finish
D
being finishing