----May we leave the classroom now?----No, you . You to leave until the bell rings.A．mustn’t; are al

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• 根据如图回答下列问题：（1）图中太阳光、空气属于生态系统的______部分．（2）图中属于初级消费者的是______，属于最高消费者的是______．（3）螳螂的发育属于不完全变态，与家蚕相比-八年级
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• ---Dad, must we wait until the light becomes green?---Yes, I’m afraid we ______. That’s the traffic
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• This blue car ____________ be Bob’s bcause his car is black.A．can’t B．must C．could D．would-九年级英语
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