题目

在水圈中，几乎到处都有生物，但是，大多数生物生活在水下（ ）的水层中 A . 10千米 B . 20千米 C . 150米 D . 30千米 答案：AA: I had a great time ______ games with my friends in the park yesterday.B: How great! But I didn’t have any time _______ at all, I had to get ready for the test.A．playing; to playB．play; to playC．playing; playingD．to play; playing