What______useful dictionary for beginners of English! Where did you get it— I bought it in the bookshop.

______the students in our class is 50 and ______them study hard [ ]

‘m willing to help, I do not have much time available．

I wonder if your daughter will go to see the dolphin show, Mr. Wang.—If yours does, so ________ mine.

In a conference call with state and local officials Wednesday afternoon, Mr. Obama __________confidence in the procedures(程序) already in place to prevent the spread of Ebola(埃博拉病毒)