74._____，success results from hard work.

A.Worse still　　　　 B.Sure enough　　　　　 C.To sum up　　 D.What’s worse

73._____ the general state of his health，it may take him a while to recover from the operation.

A.Given　　　 　　　　B.To give　　　　　　　 C.Giving　　　 D.Having given

72.Helen was much kinder to her youngest son than to the others， _____，of course，made the others envy him.

A.who　　　　　　　 B.that　　　　　　　　　 C.what　　　　 D.which

71.Boris has brains. In fact，I doubt whether anyone in the class has ____IQ.

A.a high　　　　　　 B.a higher　　　　　　　 C.the higher　 D.the highest

70.Yesterday Jane walked away from the discussion. Otherwise，she ____ something she would regret later.

A.had said　　　　　 B.said　　　　　　　　　 C.might say　　 D.might have said

69.An awful accident_____，however，occur the other day.

A.does　　　　　　　 B.did　　　　　　　　　 C.has to　　　　 D.had to

68.Greenland， _____ island in the world，covers over two million square kilometers.

A.it is the largest 　B.that is the largest　 C.is the largest 　D.the largest

67._____， he often forgot to turn off the lights.

A. Even better　　　 B. Strange　　　　　　　 C. However　　　　 D .Fortunately

66.It was not until she had arrived home_______ her appointment with the doctor

A. did she remember　　　　　　　　　　　　　 B. that she remembered

C. when she remembered　　　　　　　　　　　 D. had she remembered

65.-Where was it_____ the road accident happened yesterday ?

　 --In front of the market.

A. when　　　　　　 　B. that　　　　　　　　 C. which　　　　 D. how