It was unbelievable that the fans waited outside the gym for three hours just ________ a look at the sports stars.
| A．had | B．having |
| C．to have | D．have |
At the meeting, all the employees were required not to________ any important details before it was made public.
| A．try out | B．make out |
| C．let out | D．break out |
—Dad, I feel very nervous with the competition approaching.
—________. It is an honor to take part in it.
| A．Take your time | B．Take it easy |
| C．No problem | D．It's hard to say |
If Peter ________ harder in the senior high school, he would be a college student now, too.
| A．had worked | B．have worked |
| C．should work | D．worked |
Nursery rhymes are attractive to children because they are easy ________ and sound funny.
| A．remembering | B．to be remembered |
| C．to remember | D．remembered |
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.
| A．ending up | B．leaving out |
| C．using up | D．running out |