Talk to your teacher and you will get help ________ you have a problem.
| A．unless | B．if | C．until | D．so |
-Why do students love Mr．Brown？
-Because he is very _____________．He always explains problems over and over again．（ ）
| A． |
clever |
B． |
serious |
C． |
creative |
D． |
patient |
Lily has lots of _____________．She can learn much from them and use them to mail letters．（ ）
| A． |
stamps |
B． |
toys |
C． |
newspapers |
D． |
novels |
Do you know _____________ girl over there？
-Yes，she likes playing _____________ basketball a lot．（ ）
| A． |
a； the |
B． |
the；/ |
C． |
the； a |
D． |
a；/ |
-________ interesting book it is!
Yes， I like it very much． I have already read it three times．（ ）
| A． |
How |
B． |
How an |
C． |
What |
D． |
What an |
It ______ that China _________ its first homemade aircraft carrier （国产航母） in the water in Dalian on April 26 th， 2017．（ ）
| A． |
was reported； put |
| B． |
was reported； was put |
| C． |
reported； put |
| D． |
reported； was put． |