Hoàn thành câu sau

1, when i ___ her, i ___ her your regards
a, met/was sending                                       c, met/had sent
b, meet/will send                                           d, meet/sent
2, when we enter the room, our boss___ for us here
a,will wait                                                       c, was waiting
b, will be waiting                                            d, will be waited
3, when i got home i found that water ___ down the kitchen walls
a, ran                                                             c, has run
b, was running                                               d, had been running
4, mike ___ his favorite program on TV when the lights went out
a, was watching                                            c,watched
b, is watching                                               d, watches
5, when the fist child was born, they ___ for three years
a, have been married                                   c, will been married
b, had been married                                     d, will have been married

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