Don’t listen music in the classroom hallways. A. to; and B. to; or C. at; or
—Where is North Korea? —It lies ______ the northeast of China.
The People’s Republic of China was ______ on October1st,1949.
—Can you work out this math problem? —Yes. ______
—Can I help you? —Yes. I want two ______ eggs.
My teacher promised to ______ my suggestions, so I gave him some ______ .