Jack wasn't saying anything, but the teacher smiled at him ________ he had done something very clever.(2011·湖南)
Gold is similar _________colour _______brass. A. in; in B. to; to C.in; to D at; to
More measures should be ______ to protect the natural resource.
Tell John not to leave the house unless hethat the lights.
Mrs.Brown is soabout her housework that few servants Want to work for her.
After you have used the dictionary,please just put it backit belongs.