答案:上下班高峰期的交通拥挤问题是大城市目前的一个棘手问题
答案:上下班高峰期的交通拥挤问题是大城市目前的一个棘手问题
A. me go
B. me going
C. I go
D. I going
A. early
B. much early
C. more early
D. earlier
A. can’t
B. needn’t
C. mustn’t
D. won’t
A. Sure
B. No, you can’t
C. No, they are mine
D. Yes, you can
A. cooked
B. was cooking
C. cooks
D. has cooked