I have highlighted all the spelling and punctuation mistakes in yellow.
Around this time of year, the weather on this island is very unpredictable .
I plan to reproduce several hundred copies of the painting.
Mars, which is the 4th planet from the sun, is referred to as "the Red...
779
クジラとイルカはとても知能が高い動物だということを誰もが知っている。
Everyone knows that whales and dolphins are highly intelligent animals.
≈clever, bright, smart
780
乾燥して不毛なその地域の土地は耕すのがとても困難...
The current situation is very serious.
Our highly competent personnel are our company's main assets.
The doctor said to him to make exercise a part of his daily routine.
Mars, which is the 4th planet from the sun, is referred to as "the Red Planet".
I'm not sure that this ...
776
その問題の解決法は誰の目にも明らかだった。
The solution to the problem was obvious to everyone.
明らかな[≈clear, plain]
777
彼女は彼にそれ以上お金を貸すことに気が進まなかった。
She was <...
773
小さな子供とお年寄りはインフルエンザウィルスにより弱い。
Small children and the elderly are more vulnerable to flu viruses.
弱い<to 病気などに>, 傷つきやすい(<---> immune 免疫のある, 影響を受けない)
774
日焼け止めは紫外線に対する<...
A monument was put up to commemorate the victims of the terrorist attack.
After two years in prison, he abandoned all hope of every being released.
The presentation was easy to understand as it included a lot of graphics.
Your student loan will be processed once we have received...
770
彼はクリーンエネルギーの支持者としてよく知られている。
He is well known as a proponent of clean energy.
支持者<of ~の> [≈advocate, supporter] (<---> opponent)
771
この都市には、多くの商業地域...
The actor is well known for playing evil characters, but in real life he is very pleasant.
Canada is, after the Russian Federation, the second largest country in the world.
There are plans to remodel the old station building next year.
There have been several important innovatio...
767
この会社の従業員には、これ以上一生懸命に働こうという励みになるものがほとんどない。
The workers in this company have little incentive to work any harder.
動機<to do ~するための>, 誘因[≈inducement]
768
その農場における動物の扱われ方に対し、多...
These plans are scheduled to be implemented next year.
I would rather you didn't do that sort of thing.
He has been in a wheel chair since his motorbike accident.
The continuous rain spoiled our holiday on the tropical island.
The police had few clues as to who had robbed ...
The child was taken into care after being abused by his parents.
It will be virtually impossible to finish this work by the deadline.
If only it were just a story!
Mr. Lincoln was as brave a man as ever lived.
The engineers studied the diagram of the building's air conditi...
761
その論争は3年経った今も続いている。
The dispute has been going for three years now.
論争[≈argument, quarrel]
762
フランスの外務大臣は昨夜、ドイツの対応する人（外務大臣）と貿易問題について議論した。
The French Fore...
Many plant foods such as red beans and berries are very high in antioxidants.
The company holds a monopoly over the sales of weapons in the region.
Unless you check this box, you will not be allowed to proceed.
The child was given a placement with a foster family.
After tw...