单项选择题
A. they do not reach their objectives B. they do not contact parents C. children escape from school D. they meet their targets
A．how long do you think that B．international communications C．I cannot see you frequently D．after you finish your degree E．how often do you see me F．I have not seen you in a while G．Learn something important H．So where have you been
A. all nature, including man, is growing then B. it lasts longer than the other seasons C. it is not too warm and not too cold D. both B and C