Đáp án:

there are a lot of devices that are helpfuf to students' study. One of them is the computer.the computer can brings us mary benefits.firts, the computer can be used for online education and research.with the help of the internet.students can find used to imformation about their project.second, it is used to learn languages.to sum up, the computer is helpful to students many benefits.

Giải thích các bước giải:

Đáp án+Giải thích các bước giải:

Of all the inventions we know, I like the wheel the most. The wheel was invented around 3,500 BC, and quickly spread across the globe. The invention of the cart facilitated agriculture and trade by allowing goods to be transported to and from markets, as well as easing the burden on those traveling long distances. Now, wheels are vital to our way of life, found in everything from watches to vehicles to turbines.