______ your brother or you going to the market with your mother?  ----of course,my brother is.
A is   B.are  C.will  D.shall
门紧紧闭着.the door was _____ _____ .
当你不熟悉环境时,你应该照别人的样子做.
you ____ ____ ____when you are not familiar to the circumstance.
水是固态的冰.ice is water _____ ____ _____ _____.
我们在伦敦只停留一天,所以我们尽量加以利用,多看点东西.
        we've only got one day in London,so let's ____ ____ ____ ____ it and see everything.