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
The servant did _____ she could ______ the revolutionary.
The missing boys were last seen _____ near the river.
He gave me the phone number in order ______ contact him when we are in need of help.
You know that widely reading helps ______ your knowledge so I can’t help _____ the housework every day.
The factory is five kilometers ______ from his house.