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4. Read and circle. (读一读, 圈一圈)
A: I lose / lost my hat.
B: Where did you lose / lost it?
A: On the taxi.
B: What colour is / was it?
A: It is / was blue.
B: Is / Was this your hat?
A: Yes, it is / was. Thank you!
A: I lose / lost my hat.
B: Where did you lose / lost it?
A: On the taxi.
B: What colour is / was it?
A: It is / was blue.
B: Is / Was this your hat?
A: Yes, it is / was. Thank you!
答案
lost; lose; was; was; Is; is
解析
第一空，A说“我丢了帽子”，丢帽子是过去发生的事，用lose的过去式lost；第二空，B问“你在哪里丢的”，助动词did后接动词原形lose；第三空，问帽子过去的颜色，用is的过去式was；第四空，回答颜色同样用过去式was；第五空，B拿着帽子问“这是你的帽子吗”，指现在的状态，用Is；第六空，A确认现在这是自己的帽子，用is。
5. Look, read and write. (看一看, 读一读, 写一写)
A: There are ______.
B:But ______.
A:
B:
A: There are ______.
B:But ______.
A:
B:
答案
six children and five T-shirts; there aren't enough T-shirts; Let's buy some more; Good idea.
解析
根据五年级上册Modules 4—6知识点（there be句型、enough用法及建议表达），结合常见插图场景（如6个孩子和5件T恤），A先描述数量，B指出不足，A提建议，B回应。
