—Hi .Jack! Could you come to our English party?
—Sorry， I _ . I have to look after my little sister at home.
A. must B. could C. can't
Xi Jinping， our _______ president， paid a visit to Harbin last month， How encouraging!
A. 63 years old B. 63 years' old C. 63-year-old
—Which of the two T-shirt would you like lo choose?
—Both. Then I can give one lo my brother and leave _______ lo myself.
A. another B. the other C. other
As middle school students， we should ______ to protecting our school environment.
A. make a contribution
B. make a decision
C. make progress
—The temperature is 30^C today. I prefer staying in to going out.
—It will be _______ tomorrow. The temperature will reach 35^C.
A. colder . B. hotter C. hottest
Don't stay inside _______such a sunny morning. Let's go out to enjoy the gentle wind and the sweet flowers.
A. on B. in C. from
