Do you know that China is one of countries in the world？
Yes，I do．It's much than the US．（ ）
| A． |
oldest； older |
B． |
the oldest； older |
| C． |
the oldest； elder |
D． |
the older； elder |
Although we don't know what was discussed ， we can feel the topic____（ ）
| A． |
has changed |
B． |
was changed |
C． |
has been changed |
I'm sure____our team will win the match．（ ）
| A． |
if |
B． |
that |
C． |
when |
There is a____in our zoo．（ ）
| A． |
pigs |
B． |
panda |
C． |
dogs |
May I do my homework now，dad？
﹣Yes，you____（ ）
| A． |
must |
B． |
may |
C． |
can |
This is____friend，Sam．（ ）
| A． |
I |
B． |
my |
C． |
me |