--- Credit cards are useful when travelling.
—True. They save us the trouble of taking too much cash.
| A．exactly | B．gradually . | C．particularly | D．hardly |
---- Look! Everything here is under construction.
---- What’s the pretty small house that ____________ for?
| A．is being built | B．has been built | C．is built | D．is building |
---- Isitinthatfactory__________“RedFlag”carsareproduced?
---- No, they are produced in our factory.
| A．inwhich | B．where | C．which | D．that |
We’retalkingaboutthepianoandthepianist_____wereintheconcertweattendedyesterday.
| A．which | B．whom | C．who | D．that |
Thefreezingpointisthetemperature__________waterchangesintoice.
| A．atwhich | B．when | C．inwhich | D．ofwhich |
Don’t talk about such things _______ you are not sure about.
| A．which | B．that | C．as | D．what |