问几道英语题阿,1.—_____willtheconcertbegin?—______seveno'clock.A.howlong;notuntilB.honglong;untilC.howsoon;notuntilD.howsoon;until2.We'lldowhatwecan_______youwithyourEnglishstudy.A.tohelpB.wereleft

　　问几道英语题阿,

　　1.—_____willtheconcertbegin?

　　—______seveno'clock.

　　A.howlong;notuntilB.honglong;untilC.howsoon;notuntil

　　D.howsoon;until

　　2.We'lldowhatwecan_______youwithyourEnglishstudy.

　　A.tohelpB.wereleftC.hadleftD.left

　　3.AlicehasbeeninChinaforseveralyears.She_____beabiggirlnow.

　　A.needB.mustC.canD.may

　　这集体都拿不准,谢谢回答,（选什么,为什么）