When the plane ____, all the passengers on board should turn off their mobile phones.
| A．takes in | B．takes out |
| C．takes off | D．takes up |
The teacher wrote an example on the blackboard to ______ the point.
| A．illustrate | B．suggest | C．express | D．recognize |
A single pipeline ___________ all the houses with water.
| A．is served | B．serves | C．are serving | D．serve |
Whom would you rather _________ you to the hospital?
| A．have sending | B．have send | C．having send | D．having sent |
Prices of daily goods _______ through a computer can be lower than store prices.
| A．are bought | B．bought | C．been bought | D．buying |
Go and see that play. I______ you'll enjoy it.
| A．guarantee | B．complaint | C．budget | D．feel |