Viết lại câu:
1. Scientists have discovered that there is water on Mars.
-> It has been discovered by Scientists that there is water on Mars
2. We expect the professor will arive this morning.
-> It is expected that the professor will arrive this morning
#Sr bạn nha! Cái bài "Sử dụng từ cho trong ngoặc" ý, cái bài đó mình chưa hiểu cho lắm ạ!
#Ngàn lần sr bạn ạ!
@Trinhthuy1987