全国十大饮品品牌连锁:The exercises must be handed in.这句话是什么意思？

The exercises must be handed in.这句话是什么意思？ We should do more such exercises in the future,I think,___ those we did yesterday. A.as B.that The girl fell asleep ______ doing her english exercises. 谢谢 the global leader must perform Need I go to see the manager?---Yes, you____.A) must B)do C)may D)can The patient must stop ______(smoke). we must study hard for the () You must agree to the terms & conditions You must pick the flower(否定句) 求新概念英语第二册lesson15 Exercises A 1.2.3题的b的答案