How should you add the correct punctuation marks to the following sentence？（ ）
A．Amy said "If it rains tomorrow，we'll stay at home．"
B．Amy said "if it rains tomorrow，we'll stay at home．"
C．Amy said，if it rains tomorrow，we'll stay at home．
D．Amy said，"If it rains tomorrow，we'll stay at home．"
The zebra eats grass，but it ________ eat meat.（ ）
| A． |
doesn't |
B． |
didn't |
C． |
don't |
Look!Some old people _______ in the park.（ ）
| A． |
sings |
B． |
sing |
| C． |
are singing |
D． |
Guilin isn't as _______ as Beijing.（ ）
| A． |
big |
B． |
bigger |
C． |
biggest |
﹣﹣﹣Can you play table tennis？
﹣﹣﹣Yes，I _______ .（ ）
| A． |
can |
B． |
must |
C． |
may |
There is a new TV________ the wall.（ ）
| A． |
at |
B． |
of |
C． |
on |