巩固练习
i was ______ work last week, but i changed my mind.
a. to start b. to have started c. to be starting d. to have been starting
i intended ______ the matter with you, but i had some guests hen.
a. discuss b. discussing c. having discussed d. to have discussed
don’t let me catch you ______.
a. do that again b. to do that again c. doing that again d. done that again
there are many kinds of metals ______.
each has its special properties b. one has its special properties
c.each having its special properties d. having its special properties
it’s pay-day, and they’re waiting ______.
a. for paying b. to be paid c. to be paying d. to have paid
_______ trouble, i’m going to forget the whole affair.
a. then rather cause b. rather causing
c. rather than cause d. rather than caused
the brilliance of his satires was ______ make even his victims laugh.
a. so as to b. such as to c. so that d. such that
children with parents whose guidance is firm, consistent, and rational are inclined ______ high levels of self-confidence.
a. possess b. have possessed c. to possess d. possessing
the worker is ______ in repairing the machine to notice my coming.
a. too busy b. enough busy c. busy too d. busy enough
“what did you do in the garden?”
“i watched my father ______ his motorbike.”
a. to repair b. repaired c. repairing d. repairs
四。答案
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