When and where we meet? — Let’s make it 3:00 at my home.

After we came into the house, we found him lying on the ground with his mouth _______ and eyes ________.

Don’t forget __________your photo here tomorrow.

David，is that man your Chinese teacher?—It___________ be him．He’s having a meeting．

Some people fear that ______ air pollution may bring about changes in ______ weather around the world.