43.___ difficult the task may be, we must fulfil it this month.
A. No matter how B. No matter what C. No matter when D. No matter where
42.___you understand this rule, you will have no further difficulty.
A. Once B. At once C. Only D. Only then
41.____ you work, you must always serve the people heart and soul.
A. Wherever B. Whenever C. Where D. When
40.I’ll discuss it with you ____ you like to come.
A. when B. where C. whoever D. whenever
39.____ makes mistakes must correct them. A. Who B. What C. Whoever D. Whatever
38. You are certainly right,____ others may say. A. what B. whatever C. that D. as
37. We must do ____ the people want us to do..
A. whatever B. however C. wherever D. whenever
36. It rained heavily,____ the basketball match had to be put off.
A. so that B. when C. otherwise D. therefore
35. You must work hard,____ you will not learn English well.
A. if B. whether C. otherwise D. unless
34. The book is not easy.____ it's rather difficult.
A. On the one hand B. On the contrary
C. On the other hand D. On the other contrary