問題詳情
20. Ms. Lin：Students have to take the math test today. But it is not hard. They can do wellon the test ______ they pay attention to what the teacher says in class.Ms. Chen：Hope they can get good grades.
(A) until
(B) before
(C) as long as
(D) as soon as
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增