cô ơi chưa có từ in đậm ạ

Question 1: When you cross the street, be careful and be on the alert for the bus.

Question 1: When you cross the street, be careful and be on the alert for the bus.

nHNO3=6,72/22,4=0,3 mol

vì khí b có tỉ khối với H2 là 20,333=> khí b là N2O

    4Cu   +     10HNO3   -->4Cu(NO3)2 + N2O + 5H2O

   0,12               0,3                                 mol

=>mCu=0,12*64=7,68 g

29 C => improved

30 A => Having had

1. Diana reminded Sue to post her letter.

2. Henry offered to carry John's suitcase.

3. The leading actor admitted to have been nervous.

4.There's no point in getting Tim to lend you his car.

5. His wife said that if he had understood her thinking, he wouldn't have troubles in his life.

6. Despite being rich, he never helped the poor.

7. She wishes she hadn't neglected her studies.

8. If it hadn't been for my teacher's help, I wouldn't have been able to get the scholarship.

9. David apologized to Jack for breaking his pen.

10. I object being criticised unfairly.

1  Diana reminded Sue to post her letter. 

2 Harry offer to carry John's suitcase

3 The leading actor admitted that she had been nervous

4 There's no point in trying to get Tim to lend you his car.

5 His wife said that if he had understood her thinking, he wouldn't have trouble in his life

6 Despite being rich, he never help the poor

7 She wishes she hadn't neglected her studies so he wouldn't have failed in her.....

8 If it hadn't been for my teacher's help, I wouldn't have been able to get the scholarship

9 David apologized for having broken Jack's pen

10 I object to being criticised unfairly

1. Diana reminded Sue to post her letter.

2. Henry offered to carry John's suitcase.

3. The leading actor admitted to have been nervous.

4.There's no point in getting Tim to lend you his car.

5. His wife said that if he had understood her thinking, he wouldn't have troubles in his life.

6. Despite being rich, he never helped the poor.

7. She wishes she hadn't neglected her studies.

8. If it hadn't been for my teacher's help, I wouldn't have been able to get the scholarship.

9. David apologized to Jack for breaking his pen.

10. I object being criticised unfairly.

1 growing

2 preparing

3 completion

4 competitive

5 announcement

6 scientific

7 imeginative

8 disadvantaged

9 beautifully

10 celebrate

1. The beginning of spring is celebrated by people in many parts of the world.

2. Finding no one at home, he left the house in the bad temper.

3. If the bag hadn't been heavy, we could have taken it with us.

4. Lan denied having broken the mobilephone.

5. Not hearing what he said, I asked him to repeat it.

6. You'd better take a taxi or you will miss the train.

7. We found Jack sleeping on the sofa when we arrived.

8. The novel was so interesting that I read it many times.

9. Because of his bad memory, he doesn't make much progress in his English.

10. She blamed him for ignoring the notice about life-saving equipment.

1. The beginning of spring is celebrated in many parts of the world.

2. Finding no one at home, he left the house in the bad temper.

3. If the bag hadn't been heavy, we could have taken it with us.

4. Lan denied having broken the mobile phone.

5. Not hearing what he said, I asked him to repeat it.

6. You'd better take a taxi or you will miss the train.

7. We found Jack sleeping on the sofa when we arrived.

8. The novel was so interesting that I read it many times.

9. Because of his bad memory, he doesn't make much progress in his English.

10. She blamed him for ignoring the notice about life-saving equipment.

31 confidence

32 excited

33 disadvantage

34 difficult

35 educational

36 seriously

37 representatives

38 sympathize

39 traditionally

40 inventive