—It's really kind of you to help me with Maths，Jack.
— ______.
A．It doesn't matterB．All right
C．You're welcomeD．Never mind
The doctor wanted to know _______ this morning.（ ）
| A． |
what did you have |
B． |
what you had |
| C． |
what you have |
D． |
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 |