—Did you return Fred’s call?
—I didn’t need to ____ I’ll see him tomorrow.
| A．though | B．unless |
| C．when | D．because |
Most air pollution is caused by the burning of ____ like coal, gas and oil.
| A．fuels | B．articles | C．goods | D．products |
What’s the _____ of having a public open space where you can’t eat, drink or even simply hang out for a while?
| A．sense | B．matter | C．case | D．opinion |
The journey around the world took the old sailor nine months, _____ the sailing time was 226 days.
| A．of which | B．during which | C．from which | D．for which |
He got to the station early,____________ missing his train.
| A．in case of | B．instead of | C．for fear of | D．in search of |
He got to the bus station early, _____ missing the first bus .
| A．in case of | B．instead of | C．for fear of | D．in search of |