______ the danger ahead on the railway line, he decided to go to Beijing by plane instead.
A. Having been informed of B. Having informed of
C. To be informed of D. Informing of
My parents, without ______ help I wouldn’t have become who I am, have taught me the true meaning of life.
A. whom B. their C. whose D. them
_ properly, a car can be used for many years.
A. Maintained B. Maintaining
C. To be maintained D. To maintain
______ is conveyed here to children is that reading is one of life’s greatest treats.
A. As B. What C. That D. It
It is not until midnight ______ he goes to bed every day.
A. before B. when C. since D. that
--- You can’t have enjoyed your picnic in the rain last Saturday, I’m afraid.
--- On the contrary, we ______.
A. can B. must C. did D. have
