【题目】用be动词的适当形式填空。
【1】This ________ the Great Wall.
【2】These ________ my postcards.
【3】There ________ lots of mountains in China.
【4】The Changjiang River ________ long.
【5】There ________ five people under the tree.
【6】There ________ a famous mountain in Shandong.
【答案】
【1】is
【2】are
【3】are
【4】is
【5】are
【6】is
【解析】
略
