1,Let's go for a picnic on the weekend 

2,What about going to work by bus? 

3,Nga speaks E very well 

4,If you don't get a visa, you can't visit the US 

5,Unless you suceed ,you'll have to try it again 

6,Let's collect unused clothes 

7,She failed in the exam because of  her laziness 

8,Ba is tired because he stayed up late watching TV 

9,Hoa broke the cup since she was careless (chỗ này là cấu trúc as=since=because :bởi vì chứ ko phải thì hiện tại hoàn thành hay cấu trúc vs since đâu nhé) 

10,We were disappointed that she didn't keep her promise 

45.let's have a picnic in the park on the weekend. 

46.what about going to school by bus.

47.Nga speaks English well. 

48. If you get a visa, you can visit the United States. 

49. Unless you succeed, you will have to try it again. 

50. Let's collect unused clothes. 

52. Because Ba stayed up late watching TV, he is tird 

53. Since Hoa was careless, she broke the cup 

54. We were disappointed that she didn't keep her promise 

 mình chỉ lm đc vậy thôi