1.I don't have to introduce him to you ____you kown the boy.A.until B.unless C.since D.but2.I got a good present on my ____birthday.A.nine B.ninth C.the nine D.the ninth 3.I___to take part in the English speech contest last week.A.ask B.asked C.am as

1.I don't have to introduce him to you ____you kown the boy.A.until B.unless C.since D.but2.I got a good present on my ____birthday.A.nine B.ninth C.the nine D.the ninth 3.I___to take part in the English speech contest last week.A.ask B.asked C.am as
1.I don't have to introduce him to you ____you kown the boy.
A.until B.unless C.since D.but
2.I got a good present on my ____birthday.
A.nine B.ninth C.the nine D.the ninth
3.I___to take part in the English speech contest last week.
A.ask B.asked C.am asked D.was asked
4.Xiao Wang,___will it take to fly to Guangzhou?
A.how far B.how soon C.how many D.how long
第四题好象有争议,但答案是D,这

1.I don't have to introduce him to you ____you kown the boy.A.until B.unless C.since D.but2.I got a good present on my ____birthday.A.nine B.ninth C.the nine D.the ninth 3.I___to take part in the English speech contest last week.A.ask B.asked C.am as
1、C 、since 有因为的意思 、因为你知道他,所以我不用把他介绍给你了
2、B 、序数词前面加限定词, 比如my ,his, her 等,或者是the ,有了其中一个,就不用再加了. 在我的第九个生日（派对）中,我得到了一份好的礼物
3、D 是被动语态,我是被要求的,last week ,是过去的所以用过去被动语态、 上个星期,我被要求去参加英语演讲比赛
4、B 、小王,飞往广州需要多久? will 是将来时态 ,用how soon ,来表示多久