Ask questions with How long.....? and answer.

1. You/know her/ for six years

.............................................................

.............................................................................................

2. You/ have this bicycle/ I was in Grade six

.........................................................................................

.............................................................................................

3. You/ learn English/ four years

........................................................................

............................................................................................

4.She/ live in Da Nang/ she was a child

................................................................................

............................................................................................

5. They/ be married/ fifteen years

..................................................................

................................................................................

The Present perfect or the Past simple ?

1.(be) I _____________never_______________in jeans

2.(visit) They____________My Son Tower two days ago

3. (do) I___________all the washing recently

4.(be) Where____________you the day before last? -I___________in Hue

5.(produce) They___________two thousand jeans so far this year

6.(not go/be) I____________to school yesterday because I__________ill

7. (move/live) I_________to this city in 2005. I________here since then

8. (know) I__________her when I moved to this neighborhood

9.(know) I___________her since I moved to this neighborhood

10.(wear) I need another pair of jeans. Mine___________out

Make meaningful sentences from the following cues:

1. Jane/impress/beauty/city/friendliness/people =>..........................................................

2. It/difficult/her/trip abroad/now =>...................................................................

3. If only/ more time/ take/friends/beauty spots/city =>...............................................................................

4. school/English/compulsory subject/while/ French/ optional =>............................................................................

5. You/ interested/correspondence/friends? =>...............................................................................

6. Although/we/away/each other/keep/touch =>.................................................................................

7. I/rather/you/not tell/him/news =>...............................................................................

8. I wish/ not have/ work/do =>.......................................................................

9. That boy/ wear/same/clothes/for/weeks =>...............................................................................

10.We/be/good friends/since/young. =>....................................................................................

I. Complete the second sentence so that is has the similar meaning to the first sentence, using the word given. Do not change the word given.

1. We ought to start work now. => ...............................................................(time)

2. I haven't been to a Indian restaurant for ages.=> ............................................................(since)

3. This is my first visit to Japan. =>.................................................................(have)

4. It is a fact that the Romans built this wall? =>........................................................................(did)

5. No one told me about the change of the plan. =>...............................................................(know)

6. There is no need for you to correspond with your family immediately.=>.......................................................................................(don't)

7. Lan speaks English well. =>...............................................................(at)

8 He never comes on time=>...................................................... (always)

9. What languages do people speak in Malaysia? =>..................................................................................(spoken)

10. You should study harder =>................................................................(time)

I. Rewrite the following sentences, using I wish:

5.I don't like being so tall. => I wish ..................................................................

6. I can't understand what that tourist is saying. => I wish .........................................................................

7. Uncle Ho's Mausoleum doesn't open today. => I wish.......................................................

8. I'm sorry you don't love me. => I wish ...................................................................

9. It's a pity the weather isn't better today. => I wish.....................................................................

10. I don't know many people in the town. => I wish................................................................................

Rewrite the following sentences, using I wish :

1. I'm sorry, I can't speak English fluently

I wish ................................................................................................

2. It's a pity you can't understand how I feel about you

I wish .......................................................................................

3. I am so tired of listening to your complaints

I wish .........................................................................

4. It's a shame we don't have a video

I wish ...................................................................................

Hợp chất X có phân tử gồm nguyên tử A liên kết với nhóm SO4. Trong đó A chiếm 32,39% về khối lượng

a) Xác định CTHH của X

b) Lập CT của A với OH

c) CTHH của X cho biết điều gì