Chen Wei isn’t at school today ________ he is taking a robot competition in Shanghai.
A. so B. because C. before D. if
It was late. She opened the door ________ because she didn’t want to wake up her grandma.
A. angrily B. quietly C. loudly D. heavily
Meimei is going to be an older sister. Her parents are planning to have their ________ child.
A. one B. two C. first D. second
Students do less homework now. Usually it ________ before 9 o’clock in the evening.
A. finishes B. finished
C. is finished D. was finished
---Must we finish the work today?
---________. We have something else to do tomorrow.
A. Yes, we can B. No, we can’t
C. Yes, we must D. No, we needn’t
It’s sports time. Most ________ students in Class 1 are playing football on the playground.
A. boy B. boys C. boy’s D. boys’