【C3】A．hardB．harshC．severeD．serious

He works very （).A.hardB.hardlyC.harderD.harded

【C3】A．nervousB．interestedC．excitedD．serious

He knew that he would be punished severely because of his serious error. Therefore he ____

【C2】A．rashB．harshC．roughD．tough

The word "tedious" in paragraph 2 most probably means______.A．hardB．boringC．interestingD．l

Not discouraged by the accident, she began to work______.A．as twice hardB．harder twiceC．tw