问题
选择题
His parents are very concerned about his son at school because he _______moving in his seat.
A．is always keeping
B．always keeps
C．does keep
D．has always kept
答案
答案：A
考查时态;进行时和always连用，表示埋怨或赞扬的语气，句意是：父母很担心在学校的儿子，因为他总是在座位上动来动去。显然这里带有不满的语气。选A。