We have two math classes ______ Tuesday morning．（ ）
| A． |
in |
B． |
on |
C． |
of |
D． |
at |
______of the students in our class ______ going to the summer camp in Beijing next week．（ ）
| A． |
Two fifths； are |
| B． |
Second fifths； are |
| C． |
Two fifths； is |
It's time for me ______ goodbye to my mother school．I will never forget all my ______ love．（ ）
| A． |
to say； teachers' |
| B． |
saying； teachers' |
| C． |
to say； teacher's |
Would you mind ______ here？
Of course not．I'll ______ my cigarette at once．（ ）
| A． |
not smoking； put away |
| B． |
not smoking； put out |
| C． |
not to smoke； put off |
Everyone plays an important part in society．As members，we should try our best to do______ to make the world better and better．（ ）
| A． |
what we should do |
| B． |
what should we do |
| C． |
how we should do |
My teacher often encourages me ______ at least one hour a day reading books．（ ）
| A． |
to pay |
B． |
cost |
C． |
to spend |