1. I am considering ___my job as I’m not getting on well with my boss.

A. changing B. to change C. changed D. to be changed

【答案】A consider后面接動(dòng)名詞做賓語，表“考慮做某事”;consider sb./sth. to do表“認(rèn)為”。因此A為正確答案。本句的意思是：“我正在考慮換工作，因?yàn)槲液屠习尻P(guān)系不太好�！比纾篧e are considering learning a foreign language.我們正在考慮學(xué)一門外語。

2. Charles Babbage is generally considered ______ the first computers.

A. to invent B. inventing C. to have invented D. having invented

【答案】C此題考查的是非謂語動(dòng)詞中不定式的用法。Be considered/said/ believed to do 表示：據(jù)認(rèn)為/據(jù)說/據(jù)相信做……，而后面的動(dòng)作若已經(jīng)發(fā)生，則用完成時(shí)表示，故選to have invented.

3. Mary regretted ___ to John’s birthday party last Sunday.

A. not going B. not to go C. not having been going D. not to be going

【答案】A。regret后面要跟動(dòng)名詞做賓語，動(dòng)名詞的否定式是在動(dòng)名詞之前直接加not。

4. I regret _______ you that we are unable to offer you a job.

A. in forming B. having informed C. to inform D. to informing

【答案】C。regret to do sth.遺憾做某事。我很遺憾的告訴你我們不能給你這份工作。

5. In some parts of London, missing a bus means _______ for another hour.

A. waiting B. to wait C. wait D. to be waiting

【答案】A。means doing意味著。在倫敦的某些地方，錯(cuò)過汽車意味著再等一個(gè)小時(shí)。