问题

With that trust ____ to serve allAmericans and I will do my best to fulfill that duty every day as yourPresident

A:has introduced
B:is being introduced
C:is introduced
D:was introduced

正确答案是：

同类题型

ys, a large number of women, especially thosefrom the countryside, __________ in the clothing industry

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Sit down，P1ease．一_________.