Question

You _____ phone him if you want to, but you _____! He will surely phone you. A．may; mustn’.

You _____ phone him if you want to, but you _____! He will surely phone you. A．may; mustn’t B．have to; needn’t C．can; needn’t D．can; doesn’t need

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Answer 1

C

表示“你可 以”用you may或you can都正确，B项肯定不对，关键还是need的用法，根据下文He will surely phone you soon，可知“你没必要”，因此排除A，mustn’t“不许；禁止”，语气不对，D错在主谓搭配不一致。