(2013·济南一模)—Can you keep the secret?
—You ________ worry — I'm not going to mention it to anyone.
A．needn't B．couldn't
C．mustn't D．won't
(2013·皖南八校一模)I felt surprised that anyone of his intelligence ________ such an easy test.
A．might have failed B．could have failed
C．should have failed D．must have failed
(2013·江西六所重点高中一模)We ________ take clean drinking water for granted. One day we may run out of it.
A．needn't B．can't
C．won't D．shouldn't
(2013·成都一诊)Parents are doing all they ________ to help their children achieve their ambitions.
A．shall B．can
C．may D．need
(2013·江西南昌二模) The little girl is walking along the beach, happy and joyful, ________ bending down to pick up a beautiful seashell.
A．approximately B．regularly
C．apparently D．occasionally
(2013·福建泉州七中模拟)Whatever background you come from, you can be ________ successful with your hard work like many others.
A．equally B．merelyC．mostly D．hardly
