Please hand （ ）the exercise books （

填介词:Please hand ()your exercise books ()time --When shall we hand in the exercise-books?--____sooner,____ -When shall we hand in the exercise books?-__sooner,__better please hand（）the Here are some exercise books.Please give（）（their）to the stud Please write ---- these sentences ----your exercise books. Must we hand in our exercise books today? Must we hand in our exercise books today?中的HAND是什么意思 英语翻译Need we hand in our exercise books before class?Jim will Must we hand in our exercise books today?这里为什么是用介词in? must we hand in our exercise books now; can you buy this kin please look at the blackboard and （）your books