You may catch up with othersyou work a little harder.A. so long asB. so far asC. howeverD.

问题补充：

You may catch up with othersyou work a little harder.

A. so long as

B. so far as

C. however

D. unless

答案：

(答案→)A. so long as

B. so far as

C. however

D. unless

解析：可联系答.案.网客服索取。