It's a nice day today!Let's go for_____walk.（ ）
| A． |
a |
B． |
an |
C． |
the |
D． |
/ |
She didn't leave the school __________ she worked out this problem．（ ）
| A． |
as long as |
B． |
until |
C． |
since |
D． |
while |
Su Bingtian is the winner of the IAAF World Indoor Tour（国际田联室内巡回赛）
___________________． He is a talented runner．（ ）
| A． |
Without doubt |
B． |
Once in a while |
| C． |
For example |
D． |
All of a sudden |
Hi， I didn't see you at John's birthday party last night．
Oh， I ________________ the book report at that time．（ ）
| A． |
prepared for |
B． |
prepare for |
| C． |
am preparing for |
D． |
was preparing for |
Success ______________ hard﹣working people in the end．（ ）
| A． |
agrees to |
B． |
talks to |
C． |
belongs to |
D． |
shouts to |
It's a rule that students ___________ bring mobile phones to our school．（ ）
| A． |
mustn't |
B． |
wouldn't |
C． |
needn't |
D． |
couldn't |