题目内容：
Whether dying patientsbe helped to end their lives is a tough moral question.A．must B．shouldC．mightD．would
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单选题：Whether dying patientsbe helped to end their lives is a tou..
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Even students of average intelligence ________ become top st..
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Tim is in a good state of health _____ he doesn't get much ..
Tim is in a good state of health _____ he doesn't get much exercise.A. if B. even thoughC. unless D. as long as
—You needn’t take an umbrella.It isn’t going to rain.—We..
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_____ regular exercise is very important, it's never a good..
_____ regular exercise is very important, it's never a good idea to exercise too close to bedtime.A. ItB. As C. Although D. Unless
_____ the activities might seem childish, in reality they re..
_____ the activities might seem childish, in reality they require a lot of strength and determination.A. WhenB. As C. While D. Once