用所给单词的适当形式填空。使句意完整、正确。1. There are ten ____________ (box) in the classroom.
2. Children's Day is on the ____________ (one) of June.
3. Tom's schoolbag is ____________ (heavy) than Jim's.
4. Is this postcard yours? No, it's ____________(her).
5. Liu Tao and his mother ____________(go) for a walk after dinner yesterday. 1. boxes 2. first 3. heavier 4. hers 5. went