Do you know how to work outthe difficult math problem？（ ）
| A． |
bring out |
B． |
carry on |
C． |
solve |
D． |
do with |
He rides a bike to work every day in order to keep in __________．（ ）
| A． |
support |
B． |
service |
C． |
surface |
D． |
shape |
________ I have a word with you，Mr．Green？ It won't take long．
Okay．（ ）
| A． |
Should |
B． |
May |
C． |
Need |
D． |
Must |
Hey， are you free for dinner tonight？
________ My cousins are on the way， and I'll have dinner with them tonight．（ ）
| A． |
Take your time． |
B． |
I'm sorry， no． |
| C． |
Well done． |
D． |
Why not？ |
It is said that an A﹣shaped tower in the center of tile city next year．（ ）
| A． |
builds |
B． |
will build |
| C． |
will be built |
D． |
is built |
You'd better keep the medicine somewhere safe，out of the children's （ ）
| A． |
hand |
B． |
reach |
C． |
hold |
D． |
place |