On ______ sides of the streets are a lot of colorful flowers.
#39287
A
each
B
both
C
either
D
all
推荐题目
He found _________important to protect wild birds.
#54049
A
it’s  
B
it
C
that 
D
this
He turned around, but he couldn't see_______.
#37232
A
something unusual
B
anything unusual
C
unusual anything
D
unusual something