Tom failed ______ the experiment yesterday.A.doingB.didC.to doD.do

The experiment __________，the students went on to take notes in the experiment report

Although ______ American literature, he failed to remember the writer of the masterpiece.A

Participants in the experiment were __________. 查看材

The old lady __________Tom for breaking the window.

Almost everyone fails _______ the driver’s test o

If we fail to act now said Tom Well find ourselves ______ in action later on.A.paid