She studies ___ medicine before she turned ___ writer.
| A．×; × | B．the, a | C．×; a | D．the; × |
We’ll talk about some cases_______ drivers obviously knew the traffic rules but didn’t obey them.
| A．where | B．whose | C．which | D．that |
In such a fierce competition, a person has to make every effort if he_______.
| A．has succeeded | B．would succeed | C．will succeed | D．is to succeed |
--How often do you eat out?
--______, but usually once a week.
| A．Have no idea | B．It depends | C．As usual | D．Generally speaking |
We’d like to arrive half an hour early________ we can have time for a good rest.
| A．in case | B．so as to | C．as soon as | D．so that |
To keep healthy, Mr. Smith_______ cycling as a regular form of exercise after he retired.
| A．took up | B．put up | C．gave up | D．made up |