These problems，______ will seriously affect the growth of teenagers and even the nation's future.
#84103
A
not if solved properly
B
if solved properly
C
not if properly solved
D
if not solved properly
推荐题目
---David has made great progress recently.--- _____, and _____.
#81203
A
So he has; so you have
B
So he has; so have you
C
So has he; so have you
D
So has he;so you have
________ about wild plants that they decided to make a trip to Madagascar for further research.
#79716
A
So curious the couple were
B
So curious were the couple
C
How curious the couple were
D
The couple were such curious
— Is everyone here? — Not yet．Look，there ______________ the rest of our guests!
#79592
A
come
B
comes
C
is coming
D
are coming
Not only late, he also forgot his book.
#82257
A
had he turned up
B
he had turned up
C
he turned up
D
did he turn up