1 Because Lan was sick , she didn't go to school.

2 You had better eat too much meat.

3 What is the weight of the chicken?

4 How high was peter last year ?

5 It is usuallysunny during summer days.

6 If you don't  work hard, you will fail the exam.

7 It takes me two hours to get to Hai Phong by train

39. Because Lan was sick, she didn't go to school yesterday.

40, You had better not eat too much meat.

41. What is the chicken's weight?

42. How high was Peter last year?

43. It's usually sunny during summer days,

44. If you don't work hard, you will fail the exam.

45. It takes me two hours to get to Hai Phong by train.