时间与长度测量词汇 — 英语情景题

情景对话：Sam 和 Lily 在讨论如何测量时间。 Sam: Lily, the class begins at 8:00. How do we know the time? Lily: We can look at the (1)________ (钟) on the wall. Sam: Good! How do we measure how long our class is? Lily: We can use a (2)________ (手表) or look at the clock. Sam: And how do we measure the length (长度) of the desk? Lily: We can use a (3)________ (尺子).