Question

【题目】—I called you several times this morning, but you didn't answer.
—Sorry, I (play) tennis the whole morning.

Answer 1

【答案】was playing
【解析】句意：今天早晨我给你打了几个电话，你都没有接电话。--对不起，我整个早晨都在打网球。这里指的是今天早晨对方打来电话的时候，正在打网球，所以应该用过去进行时。所以答案是：was playing。