we've had our dinner;have they had

we've had our dinner;have they had Have you had dinner? they've got a toothache还是they have a ...还是they've had a ...? Have you had dinner yet I don't think they have had dinner,___________?A have they B We didn't have any rice for dinner we had some noodles(保持愿意） We didn't have any rice for dinner.We had some noodles.(保持原意 After that we had dinner （） whatdid you have for dinner?i had? 第3题,We一撇ve是什么的缩写,为什么用had不用have They had a nice dinner last night,______ they? after i had had dinner ,i went to school 还是 after i have had