用所给动词的适当形式填空1,We____(experiment)until we succeeded in mixing the right color2,After all the people were_____(seat),the meeting began3,His success_____(please)his teacher,His parents are also_____(please)with him4,It's said tha

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用所给动词的适当形式填空
1,We____(experiment)until we succeeded in mixing the right color
2,After all the people were_____(seat),the meeting began
3,His success_____(please)his teacher,His parents are also_____(please)with him
4,It's said that the two organizations have_____(combine)to form one company

1.experimented
2.seated
3.pleased; pleased
4.been combined