问题

You’ll surely be on time ____ you go now.[ ]

A: if
B: unless
C: whether
D: for

正确答案是：

同类题型

News came from the office __________ Wang Lin hadbeen admitted to Beijing University.

_______ we call the First Aid Centre, the doctors _______ by and by.

Would you mind taking photos with me—Of course not．When I ______you，I can have a look at them．

Mother is the person ______ is always there for you.

How was your interview with the boss— ________. He seemed interested in my experience, but he didn’t ask for my recommendation letter.