根据句子时态,用所给be动词或其他动词的时态形式填空last weekend we------------at home(not stay)---------there any people in the swimming pool just now?(be)where---------the woman----------lots of vegetables yesterday?(buy)the weather-----------cold and humid in kunming on may 18th(be)she----------my pen pal three years ago.(not be)

1. didn't stay 因为前面是last weekend ,明显是过去时
2.Was 因为后面是any修饰的people，所以应该用单数，而后面又是 just now所以应该是问刚才发生的事，所以是过去时
3.did buy因后面是 yesterday，所以应该是过去时，而又是疑问句，所以应该前面用do的过去时did，后面用动词原形buy
4.was 而且前面the weather是不可数名词，所以用单数,而且依照现在来说5月18已经过去了，应该是过去时
5.wasn't .这里的pen pal 是笔友的意思，而three years ago是三年前，所以是过去时
希望可以帮到你。

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