39．The mother didn’t know _______was to blame for the broken glass as it happened while she was out.

A．who　　 　　　　　　 B．whoever　　 　　　 C．how　　　 　　　 D．what

38．This is a very interesting book. I will buy it, _____________.

A．no matter how it may cost　　　　　 B．how may it cost

C．how much may it cost　　　　　　 　 D．however much it may cost

37．Engines are to machines _________ hearts are to animals.

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

36．They had such a fierce dog ______ I had never seen.

A．as　　　 　　　　　 B．that　　　 　　　　　 C．which　　　 　　 D．and

35．---Have you finished your essay?　 ---Half ______ when you come back.

A．has been done　　 B．is done　　 　　　 C．be done　　 　　　 D．will have been done

34．I haven’t seen Mary these past few days. I am afraid she _______ herself for some time.

A．isn’t feeling 　　　　　　　　　　　　　　　　　　　 B．hasn’t been feeling　

C．hadn’t been feeling 　　　　　　　　　　　　　　 D．wasn’t feeling

33．--- I can’t wait to go to the dance. ______ my friend Ally come?

--- Of course. She is always welcome.

A．Shall　　　　　 B． Should 　　　　　　 C．Will　　　 　　　　 D．May

32．--- Would you like a cup of coffee or a glass of beer?

---______________ will do, but milk is __________ popular with me.

　　　 A．Neither; not　 　　 B Both; more 　　　　　 C．Either; the most　 D．All; the most

31．After the ________ journey from Jiuzhaigou, Tom returned home, ________.

　　　 A．amazing; excited　　　　　　　 　　　　 B．amazing; excitedly　

　　　 C．amazed; excited　　　　　　　 　　　　 D．amazing; exciting

30．--- Were you worried about your son last night?

--- Yes. It was ___________ that I went to bed.

　　　 A．until he returned　　　　　　　 　　　　 B．until he did return　

　　　 C．not until he returned　　　　　　 　　　　 D．not until did he return