1828] His class _____ unable to agree on a monitor so far.

[译文] 他的全班学生就班长问题还没有达成一致意见。

　 A. are 　 B. has been

　 C. is 　 D. have been

[答案及简析] D。 his claas 在这儿指的是全班学生，故应该用复数。

1827] _____ send for a doctor is still a question.

[译文] 派谁去请医生仍然是一个问题。

　 A. Who that we will 　 B. That we should

　 C. Whom we should 　 D. Who should we

[答案及简析] C。 send sb. for a doctor派某人去请医生。

1826] The speech _____ me very much was made by the famous professor.

[译文] 使我非常感动的演讲是那位著名的教授作的。

　 A. which excites 　 B. that is excited

　 C. exciting 　 D. excited

[答案及简析] C。 现在分词短语做定语。

1825] How I wish I _____ such a silly mistake, but I did.

[译文] 我希望我不犯这样愚蠢的错误该多好呀，但死我就犯了。

　 A. had not made 　 B. would not make

　 C. didn’t make 　 D. haven’t made

[答案及简析] A。 wish 后面的宾语从句要用虚拟语气，与过去事实相反要用过去完成时态。

1824] He is late, _____ is often the case.

[译文] 他经常是这样迟到。

　 A. as 　 B. what

　 C. it 　 D. this

[答案及简析] A。 定语从句，as代替前面整个句子。

1823] I _____ my son _____ a doctor, but he wasn’t good enough at science.

[译文] 我原希望儿子当医生，但他一直对理科不太感兴趣。

　 A. hoped; became 　 B. hoped; would become

　 C. had hpoed; would become 　 D. had hoped; wyould have become

[答案及简析] C。 had hoped表示事与愿违。

1822] ----- Is it serious?　　　----- No, but you must _____ lying in bed till tomorrow.

[译文] --严重吗？　　　--不严重，但你得在床上一直躺到明天。

　 A. go 　 B. go on

　 C. keep in 　 D. keep

[答案及简析] D。 keep doing sth.一直做什么。

1821] It seemed that he got into trouble because the secret was _____ and he had to find another way _____.

[译文] 看来他遇上麻烦了，因为秘密泄露，他得再找出路了。

　 A. out; to go out 　 B. out; known

　 C. out; out 　 D. knowing; out

[答案及简析] C。 find a way out找出路。

1820] Can you explain _____ having done such a thing?

[译文] 你能给我解释一下你为什么做这样的事？

　 A. the reason to me for 　 B. the reason to me why

　 C. me the erason why 　 D. me the reason for

[答案及简析] A。 explain sth. to sb.向某人解释…。

1819] I had to work extremely carefully, for I didn’t know how long _____ to get used to the new tool.

[译文] 我得特别的仔细工作，因为我不知道要多久才能适应这种新工具。

　 A. it would take me 　 B. it would spend me

　 C. would it pay me 　 D. would it cost me

[答案及简析] A。 考查it take sb. some time to do sth.句型和语序。