You should try to get a good night’s sleep much work you have to do.A. wheneverB. however

问题补充：

You should try to get a good night’s sleep much work you have to do.

A. whenever

B. however

C. whichever

D. whatever

答案：

A. whenever

(答案→)B. however

C. whichever

D. whatever

解析：句意：无论你得做多少工作，你晚上都应该保证良好的睡眠（睡一个好觉）。however much=no matter how。whenever无论何时；whichever无论哪一个；whatever无论什么。