—I have signed up for the Oral English Competition.—What a________idea. You even don’t know how to introduce yourself in English.

You are a ______ man now; you are no longer a boy.

.The little boy was found_________in his room the next day.

 It is said that sandstorms will become more ________ as a result of global warming.

—Will you be____this afternoon, Jack? —It depends．I’m afraid I’ll be called by my boss．