题干
Don't be late again. Please try your best to be here __________.
A：in time
B：on time
C：at times
D：at all times
答案(点此获取答案解析）
B
Don't be late again. Please try your best to be here __________.
A：in time
B：on time
C：at times
D：at all times
民的购房成本
