现在进行时疑问句与否定句 — 英语词汇题

晚饭后，Liu Tao 在写厨房日记。请根据括号内的提示，用现在进行时的疑问句或否定句补全下列句子，每空一词，不得使用缩写形式。1. — ______ Dad ______ (wash) the dishes in the kitchen? — Yes, he is. 2. Mum ______ ______ ______ (cook) meat now; she is cooking fish. 3. — ______ they ______ (eat) fruit? — No, they aren't.