1: When the bus arrived, we missed it because we were talking.

2: You mustn't press this button because it is very dangerous. 

khhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

1. When the bus was arriving , we missed it because we were talking .
=> was arriving => arrived
2. You don't have to press this button because it is very dangerous
=> don't have to => mustn't
3 . During the Christmas holiday,she was eating too much and watching TV too much 
=> Was eating => ate ; watching => watched 
4. The dragon flew over the tower when he heard the princess cry for help
=> flew => was flying

1. When the bus was arriving , we missed it because we were talking .
=> was arriving => arrived
2. You don't have to press this button because it is very dangerous
=> don't have to => mustn't
3 . During the Christmas holiday , she was eating too much and watching TV too much .
=> bỏ too much
4. The dragon flew over the tower when he heard the princess cry for help
=> flew => was flying

bạn làm sai câu 3 rồi nhé

Identifying mistakes:

1.When the bus was arriving=> arrived , we missed it because we were talking

2.You don't have to=> mustn't press this button because it is very dangerous

3.They left for=> leftHa Noi in a beautiful morning

4.The Hung King's sons offered him many special foods:moreover=> however,Tiet Lieu just brought him Banh Chung and Banh Day.

Find the mistake in each sentence, and rewrite the sentences correctly.

1. I have seen the film before, so I knew how it ended.

->have seen->had seen

2. It was obvious that Bill worked hard because he was very tired when I saw him.

->worked=>had worked

3. If technology continues to advance so quickly, what is life like in hundred years?

->what is life like=>what will life be like

4. The spaceship won't launch until they have done a final check.

->won't launch=>won't be launched

5. When the bus was arriving, we missed it because we were busy talking.

->was arriving=>arrived

Correct the mistake in each sentences.
1. The phone rang while i had -> was having lunch.
2. We were listening to some music when he was arriving -> arrived.
3. It is 8.00 now and the film was staring -> started at 7.30.
4. My sister and i were reading a comic book online when our father was coming -> came in.
5. I wasn't going -> didn't go to school yesterday because i visited my grandparents.

VI. Combine each pair of sentences to make one sentence, using the words given in brackets

1. The bus arrived. We were talking. (WHEN)

=> The bus arrived when we were talking

2. We missed the bus. We were so late.(BECAUSE)

=> We were so late because we missed the bus

3. I was watching Da Nang Fireworks Festival on TV, and at that time the power went out.(WHILE)

=> The power went out while I was watching Da Nang Fireworks Festival on TV

4. Peter really loves to hang out with friends. (ENJOYS)

=> Peter really enjoys hanging out with friends

1. The bus arrived. We were talking. (WHEN)

=> The bus arrives when we were talking.

2. We missed the bus. We were so late.(BECAUSE)

=> Because we missed the bus, we were so late.

3. I was watching Da Nang Fireworks Festival on TV, and at that time the power went out.(WHILE)

=> While I was watching Da Nang Fireworks Festival on TV, the power was going out.

4. Peter really loves to hang out with friends. (ENJOYS)

=> Peter really enjoys hanging out with friends.

I) Tìm lỗi sai và sửa lại
1. I had paint on my shoes because I'd painted my bedroom all morning. -> been painting
2. I missed the start of the film because I buy popcorn. -> bought
3. It was obvious that Bill has worked because he was very tired when I saw him. -> had
4. We had been tidying the garden for hours and I was ing a rest. -> needed
5. When the bus was arriving, we missed it because we were talking. -> arrived
6. During the Christmas holiday, I was eating too much and watching too much TV! -> TV too much
7. Jullian was learning all about computer games by the time he was six. -> learnt/learned
8. My grandfather was owning a hotel by the beach until he sold it last year. -> had been

1. painted -> been painting

2. buy -> bought

3. has -> had

4. needing -> needed

5. was arriving -> arrived

6. too much TV -> TV too much

7. was learning -> learnt / learned

8. was -> had been

Tick cho mk nha