They had fun _____(learn) and _____(speak) English yesterday after
为什么填learning,speaking而不填learned,spoke
人气:156 ℃ 时间:2019-10-10 04:04:19
解答
一句英语里只能有一个动词.had已经是动词了,那么learn and speak就不能用动词语态了.必须加to 或ing.
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