题目内容
、听录音，选择合适的应答句。
() 3. A. It's a blackboard. B. OK.
() 4. A. It's a pen. B. It's black.
3.B 4.A
3.B 4.A3. Look at the blackboard. 4. What's this?
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题目内容
、听录音，选择合适的应答句。
() 3. A. It's a blackboard. B. OK.
() 4. A. It's a pen. B. It's black.
3.B 4.A3. Look at the blackboard. 4. What's this?
