31. That old house has just been sold.
32. Although the weather was bad, they had a wonderful holiday.
Cấu trúc Although
33. A new mall will be built here.
câu bị động ở động từ khuyết thiếu
34. If he doesn't take these pills, he won't be better.
câu điều kiện
35. Although he works hard, he can't support his large family.
cấu trúc although
36. If it doesn't rain tomorrow, I will go camping with my friends.
37. If I met an alien from outer space, I will invent him/her to my home and talk.
38. I have never traveled by air.
39. The students are studying for exams now.
40. It was such a cold day that we decided not to go out.
xin hay nhất ạ
