五、虛擬語氣

　　1) I had had your opportunities when I was young

　　2) he had known this disease is curable

　　3) painted it blue, and without any decorations

　　4) measures were taken to solve the problem of traffic jams

　　5) as though he were delivering a speech at an assembly

　　6) Jack (should) be sent to hospital right now

　　7) more mobile shops (should) be set up in the residential area

　　8) they (should) set up a special board/committee to examine this problem

　　9) the mid-term exams (should) be canceled

　　10) we (should) be short of water in a country where it is always raining

　　11) we could not have rent a house at such a low price

　　12) otherwise, it would have taken me more time to work out this question

　　13) I would seize the opportunity without hesitation

　　14) lest he should awaken the baby

　　六、不定式

　　1) to complete a 24-story building in 10 months

　　2) for us to have a good night’s sleep before the test

　　3) of you to donate so much money to the people in the disaster area

　　4) not to punish those students who had been late for class

　　5) whether to visit their son in France

　　6) warned me just now not to water flowers at noon

　　7) invited him to give us a lecture on modern art

　　8) to be the chairman of students’ union in so large a university

　　9) to apply what we have learned in class to practice

　　10) American woman to explore the outer space

　　11) only to drop it on their own feet