But you must be ___ in it and keep the room ___A clean B quiet这两个要怎么填啊

you must be ___!(kid) you must be joking改为同义句 you ___ ___ ___! You must ___(be) careful____(红绿灯处） You must ___(be) careful (在红绿灯处） Thoughts of you I don't you know,but you must be happy.Really,you must be happy! But you must be ___ in it and keep the room ___A clean B quiet这两个要怎么填啊 You must be careful with your handwriting.(改为祈使句）___ ___ with your handwriting. We must ___(be) careful. You must be strong . you must be You must be hungry You must be joking You must be confident. You must be dreaming you must be careful if you want to do better in your study ,you must be ___(impatient). --___ you ___ (see) the film before?--Yes,I ___.--Where ___ you ___(see)it?--At the Queen's CinemaIt must be on channel 2.Try that.--I___ that.But I still can't get anythingA.have trid B.trid 到底选哪个? must i clean my room now ?---no, you ___ .but you must clean it tomorrow .A.must B. mustn't C.need D.needn't写解释