Mr．Chen is a teacher ________ I want to learn from．He is so knowledgeable．（ ）
| A． |
which |
B． |
when |
C． |
who |
D． |
what |
I called you yesterday afternoon， but you didn't pick up．
Sorry． I ____ an online class at that time．（ ）
A．takeB．tookC．is takingD．was taking
Is Li Mei a teacher？
Yes， she is． She ____ at a village school．（ ）
A．teachesB．is teaching
C．taughtD．will teach
Super brain is a hit TV show recently． Which competitor do you like best？
I think Zhao Jinhao is one of ____ _competitors among them．（ ）
A．smartB．smarter
C．smartestD．the smartest
What would you like， juice or coffee？
____ ．I just want a glass of water．（ ）
A．BothB．NeitherC．EitherD．None
____ you please take the dog for a walk？
OK， but I have to fold the clothes first．（ ）
A．MustB．ShouldC．CouldD．May