英语改错题,请帮忙修改,

46.A container weighs more after air is put in,it proves that air has weight.more->heavier重量不用many的,而应该用heavy,比较级就是hezvier
A B C D
47.The young man,to make several attempts to beat the world record
A B
in high jumping,decided to have another try.to make->making（现在分词表状态,表示动作发起者正在做的事.而to do表示为了做什么,不符题意.）
C D
48.Of the two coats,I'd choose the cheapest one to spare some
A B C
money for a book.cheapest->cheaper（两者之间,不用最高级,只能用比较级.）
D
49.The protection of our environment is not nothing to be left to the
A B C
government.Everyone should be concerned.(to be去掉,不太确定,这句话意思不太懂,不好意思.)
D
50.There are moments in life where you miss someone so much that
A B C
you just want to pick them up from dreams and hug them for real.
D where->when（明显moments是表时间的,不能用which的）
51.None of us had the final say in this matter,and therefore it was
A B C
recommended that we waited for the authorities.
D waited->wait（参见recommend的用法,上例是典型用法,常见短语,需要记住的.）
52.After her two-week vacation was over,Dorothy regretted to spend
A B C
so much money for so little pleasure.to spend->having spent
D
53.Don't make Helen's remarks too seriously.She is so upset that I
A B C
don't think she really knows what she is saying.make->take（take sth seriously固定短语,拿……当真的意思.）
D
54.Workers newly arrive from the south or rural areas perform their job
A B
differently from those from other sections of the city.
C D job->jobs（这题arrive那边感觉也有点不对,不过相较来看job这个错误有点明显,所以最终还是决定选它,不知道是不是题目打错了.）
55.While remembered mainly for the invention of the telephone,
A B C
Alexander Graham Bell devoted his life to help the deaf.
D help->helping （这个也是固定用法,devote oneself into doing sth具体的可以查字典看看devote用法.）
解释的够详细了吧,还有不懂的直接找我聊,选我为最佳吧~尽管有一题确实不会.