问题 填空题 看图填空，补全句子。1. This is a ___________. You can send your friend an ___________.2. This is a piece of ____________. You can send your friend a ____________. 3. This is a ___________. You can put the stamp on the top, ___________ corner. 答案 1. computer, e-mail 2. paper, letter 3. postcard, right
