1.Good to see you again.It's almost three years ____ we met last times.【这个我觉得选D,】A until B before C while D since2.---I left my keys in the room yesterday.I had to get in ___ the window.---It's dangerous to do that.A in B through C ov

1.Good to see you again.It's almost three years ____ we met last times.【这个我觉得选D,】A until B before C while D since2.---I left my keys in the room yesterday.I had to get in ___ the window.---It's dangerous to do that.A in B through C ov
1.Good to see you again.It's almost three years ____ we met last times.【这个我觉得选D,】
A until B before C while D since
2.---I left my keys in the room yesterday.I had to get in ___ the window.
---It's dangerous to do that.
A in B through C over D to 【这个我觉得B、C都对呢?】
3.Peter will cook for his parents ____ the International Day of Families comes.
A unless B when C until D though 【这个完全没思路了,皮特为她的父母做饭,后面是怎么回事呢?】
4.When I got into the room,she was busy talking ___ the phone.
A with B on C on D in 【这个是选A还是B呢?弄不清楚.】
5.Mr Black is strongly _____ keeping animals in the zoo,because he thinks animals should also have the right to enjoy freedom.
A up B for C against D down 【这个根本不会~】
6.I need one more student to help me to carry the book.Please ask ____ Lucy ____ Lily to come.
A neither ; nor B not only ; but also C both ; and D either ; or 【这个我觉得该选D吧,他好像是说一个学生吧.】

1.Good to see you again.It's almost three years ____ we met last times.【这个我觉得选D,】A until B before C while D since2.---I left my keys in the room yesterday.I had to get in ___ the window.---It's dangerous to do that.A in B through C ov
1、D表示自从,自从我们上次见面已经有三年了；
2、B,through表示穿过,over表示在什么上方；
3、B,when表示当那天（the International Day of Families）到来的时候；
4、on the phone表示在打电话,选on就对了；
5、against表示反对,翻译：布莱克先生强烈反对将动物们关在动物园里,他认为动物也享受自由的权利；
6、你说的对,either……or……表示要么……要么……,他需要一个人,要么是露丝要么是莉莉
小贱很高兴为你解答~