There is a system ________the waste is disposed of using the principles of ecology.
| A．which | B．where | C．that | D．at which |
Though she is in her nineties, her heart seems to be ______ well.
| A．functioning | B．attracting | C．growing | D．looking |
It’s nearly eight o’clock, and the manager ______walk in at any moment.
| A．is possible to | B．is probable to | C．is likely to | D．is able to |
The road _____ to the airport is lined with tall trees.
| A．bringing up | B．resulting in | C．leading to | D．taking on |
—Dad, can we go to the shop? I want to buy some sweets.
—_____ . Can’t you see I’m busy at the moment?
| A．Take it easy | B．No problem | C．Forget it | D．Don’t mention it |
—A traffic jam?
—Yes. , the right side of the road is closed for the time being.
| A．To be repaired | B．Being repaired | C．Repaired | D．Having repaired |