（ ）1. Katrina is mad_______ me. She doesn't want to talk to me any more.
A. at B. in C. on D. for
（ ）2. — Who helped you with your homework, Lucy?
— Nobody, I did it by______.
A. himself B. herself C. myself D. themselves
（ ）3. — Where is Nicole? I didn’t see her.
— She left a (n)_______ saying that she had something important to do.
A. experience B. prediction C. message D. plan
（ ）4. We are supposed______ a black suit for the party.
A. wear B. to wear C. wearing D. wore
