You have to leave now you can catch the early busA. so thatB. as soon asC. because D. if

问题补充：

You have to leave now you can catch the early bus．

A. so that

B. as soon as

C. because

D. if

答案：

(答案→)A. so that

B. as soon as

C. because

D. if

解析：so that以便，所以；as soon as以……就……；because 因为；if如果。句意：你现在必须出发了，以便于你能赶上早班车。故选A。