You ______ the examination again since you had already passed it.a. needn’t have taken b. didn’t need to take c. needn’t take d. mustn’t take
You are working too hard. You'd better keep a ________ between work and relaxation.
Cynthia is not ashamed of what she does,she ends up doing something wrong.
It’s standard practice for a company like this one______ a security officer.
Sometimes, ________ we show our gratitude for a person is reflected in the kind of food we serve him or her.
________they decide which college to go to,students should research the admission procedures.