tìm một số tự nhiên có hai chữ số biết rằng số đó có chữ số hàng đơn vị kém chữ số hàng chục là 7 đơn vị đồng thời số đó bằng bình phương của tổng hai chữ số của nó

IV. Rewrite the following sentences, using the word in brackets.

1 My sister used to be good at English, but she hasn’t used it very often. (rusty)

à ……………………………………………………………………………………………………………………………………………………………

2. While traveling I could learn a few Spanish words

(up)à …………………………………………………………………………………………..……………………………………………………

3. My mother can speak English very well. (in)

à ……………….………………………………………………………………………………………………………………………………….…

4. In the near future students will have to know two languages, except from mother tongue. (in)

à ………………………………………………………………………………………………………………………………………………………

5. His Chinese is not good but he can communicate in simple situations. (by)

à …………………………………………………………………………………………………………………..…

Rewrite the following sentences, using the word in brackets.

1 My sister used to be good at English, but she hasn’t used it very often. (rusty)

à ……………………………………………………………………………………………………………………………………………………………

2. While traveling I could learn a few Spanish words

(up)à …………………………………………………………………………………………..……………………………………………………

3. My mother can speak English very well. (in)

à ……………….………………………………………………………………………………………………………………………………….…

4. In the near future students will have to know two languages, except from mother tongue. (in)

à ………………………………………………………………………………………………………………………………………………………

5. His Chinese is not good but he can communicate in simple situations. (by)

Xác định công thức của hợp chất A biết rằng : A là có công thức RO3 có chứa 60% về khối lượng là oxi

Complete the sentences using the words in the box.

gets by in /guess / dialect /bilingual/ official languages reasonable/ pick up/ imitate/ rusty/look up

1. Canada is a ______________ nation.

2. Never ______________ other’s accent.

3. Can you ______________ the meaning of a word through its context.

4. If you don’t know any word, you can ______________ it ______________ in the dictionary.

5. We can ______________ some everyday words while travelling.

6. Is your sister good at English? – Not really. She only ______________ a language.

7. His French is ______________ because he hardly uses it.

8. Nga’s ability of English is ______________. She can communicate with foreigners easily.

9. Malay and English are______________ in Malaysia.

10. Peter often uses ______________ when he is among his group.

Rewrite the following sentences, using if.

1. I don’t know enough English, so I often feel nervous before any interviews.

If ………………………………………………………………………………………………………….…………………………

2. I don’t read much because I have no time.

If …………………………………………………………………………………………………………………………………….

3. You should spend much time practicing reading.

If I ………………………………………………………………………………………………………………………………….

4. It might rain. If it does, everyone can eat inside.

………………………………………………………………………………………………………………….……………………………….

5. We don't visit you very often because you live so far away.

……………………………………………………………………………………………………

1 My language teacher is bilingual ______________ English and French.

2. To take part in the oral test you must be fluent ______________speech.

3. You cannot enroll an upper intermediate course if you can’t speak a word ______________ English.

4. Margaret was very disappointed ______________ her exam result.

5. My younger brother is not keen ______________ learning a foreign language.

6. My language teacher was very impressed ______________ the progress I have made during the term.

7. They always have difficulty ______________ pronouncing some long words.

8. You can’t expect to develop real skill ______________ speaking in a few weeks