David fell fast asleep while he______a newspaper．（ ）
| A． |
reads |
| B． |
has read |
| C． |
was reading |
Big sale!We have T﹣shirts __________white __________only ＄6.（ ）
| A． |
in；for |
B． |
of；for |
C． |
in；at |
She can't sleep well __________too much noise next door.（ ）
| A． |
because |
B． |
because of |
C． |
since |
___________ our teachers，we've made great progress in the past four years.（ ）
| A． |
Thanks for |
B． |
Thankful to |
| C． |
Thanks to |
D． |
I read two reports yesterday.One is about the Three child Policy（政策），_______ is about Mar exploration（探测）.（ ）
| A． |
another |
B． |
the other |
C． |
other |
We________ have a graduation ceremony next week，but I'm not sure.（ ）
| A． |
must |
B． |
need |
C． |
might |