答案：答案:大约有一半的水果已经成熟了。
答案：答案:大约有一半的水果已经成熟了。
A. Not at all.
B. Good, thank you.
C. Nothing serious.
D. Sure
A. Not at all.
B. Good, thank you.
C. Nothing serious.
D. Sure
解析：解析:你的自行车有什么问题?A为一点儿也不,别客气;B为好的,谢谢你;C为不严重,没什么大问题;D为好的。注意:一般疑问句(Do you....?/Is it...?)的回答为:yes或者no;特殊疑问句(what/where/when/who/which/why/whose/how等疑问词引导的疑问句,不能用yes或者no回答。
A. like
B. with
C. to
D. as
A. I 'm a teacher.
B. I play football.
C. You are a student.
D. They clean rooms.
A. appeared
B. happened
C. occurred
D. emerged
