—Shall I inform him of the change of the schedule right now?—I am afraid you ________, in case he comes late for the meeting.
At the meeting, all the employees were required not to________ any important details before it was made public.
—Dad, I feel very nervous with the competition approaching. —________. It is an honor to take part in it.
If Peter ________ harder in the senior high school, he would be a college student now, too.
Nursery rhymes are attractive to children because they are easy ________ and sound funny.
As we all know, with the development of science and technology, the earth's resources are ________ at an alarming rate, so we should make good use of them.