r middle school students,some courses are compulsory, while others are ________.

I _______ have met him a long time ago. Both his name and face are very familiar.

下列语段中加点词语的字形和注音全部正确的一项是初到此地，见到的风景绝然不同于江南。远山近坡连绵一色的黄，土石相叠。“禅房”村坐落其间，既瞒哄(hǒnɡ)天下，又欺骗想象：不当是树木葳蕤，水气氤氲（yūn），浓荫深处，一茶一琴悠然清远的么然而，千年的过客撷(xié)来冷月吐织馨香的巾绢，迷离的双眼，让你轻驭遐思，找寻曾经难以磨灭的一抹(mò)瑰丽。“禅房”村妥妥地承载着先人的辉煌：出土的骑马女俑虽腰际浑圆，袒胸露(lù)臂，但因曳（yè）地长裙构成的大面积竖线条，显得附仰生姿，臃容华贵；至于那刻在崖壁上的骠(piào)勇之将，已不再隶属于稗(bài)官野史的范畴了。

That must have been a long trip.– Yeah, it _______ us a whole week to get there

What is your sister going to be ________ she growsup?–She is going to be an engineer.A．before