问题补充:
You should try to get a good night sleep much work you have to do.
A. however
B. whatever
C. no matter
D. although
答案:
(答案→)A. however
B. whatever
C. no matter
D. although
解析:句意:无论你有多少工作要做,你应该保证有充足的睡眠。However /no matter how可以引导让步状语从句,结构是:However/no matter how+adj/adv.+主语+谓语,B项whatever应该接名词,C项少了how,D项although不能接倒装句,选A。