【】I slept for three hours last night.
That was terrible.You know that sleep is _____ for your health. A.easy B.necessary C.difficult D.free
【】___ Mr.Li is over 65 years old,he learns to speak English every day.A.And B.If C.Although D.Because
【】Let your sister play with your toy car, you should learn to ___ .A.care B.share C.like D.help