帮我做几道英语题目1:Before christmas Jack prepared gifts for all his

帮我做几道英语题目
1:Before christmas Jack prepared gifts for all his frends and collegues Friends" gifts were placed at home but_____were at office
A：colleague's B:colleagues C:colleagues'
2:As an independent aduit,you should not continue expecting too much from others,for___will have no position in the coming age
A:lazy anyone B:an lazy one C:anyone lazy
3:Sam,a physiologist,____in the laboratory till he made another discover in 2001
A:has researched B:had been researeching C:was researching
4:The world will become a better one as___as everyone protects the environment
A:soon B:long C:same
5:他们昨天的谈论的话题是科学{用定于从句}
6:A:Did henry buy her a gift in London?or not?
B:Henry‘s girlfriend was guessing
___________{使用宾语从句}
一共6题不理解,望大人给下答案,别乱写,误人子弟……