Hòa tan Na vào nước thu được 2,24 lít khí H₂(đktc). Tính khối lượng NaOH và Na tham gia phản ứng?

I . Change these sentences into passive :

They built that house five years ago

.........

She bought a lot of flowers for her mother

.........

The children eat all the vegetables and meat

........

Lien didn ' t finish her homework .

.........

Ba can fix his bike by himself .

.........

He wrote these books for the children .

........

People use this cloth bag again and again .

.......

You don ' t prepare your lesson before you go to school .

.........

Ha Long Bay attracts a lot of tourists

. ........

Thu has seen that movie twice

........

IV - Choose the best answer and circle

1 - The bike. . . . . . . . in Japan is USD 100.

A - maked | B - make | C - making D - made

2 - It 's difficult. . . . . . . . . . . . . . all these things.

A - remembered B - remember C - to remember D - remembering

3 - Have you finished your homework. . . . . . . . . . . . . . . ?

A - yet B - already C - since D - for

4 - Color television. . . . . . . . . . by John Logie Bard in 1928.

A - was invented B - is invented C - has invented D. invented

5 - She asked me if I. . . . . . . . . . . pop music.

A - like | B - to like C - liked D - liking

6 - I don 't know how. . . . . . . the game.

A - playing B - play C - to playing D - to play

7. . . . . . . . . . . . . . . . . is often called "The windy city".

A - San Francisco B - Hawaii C - New York D - Chicago

8 - People use the first aid. . . . . . . ease the victim 's pain and anxiety

A - so that B - in order to C - in order that D - So as

9 - Would you mind. . . . . . . . . . . . . . . . . . your car?

| A - move B - moving | C - moves D - to move

10 - When Nam won the race, the crowd. . .

A - cheering |B-is cheering |C-cheered|D-was cheering

11. I can see a boy. . . . . . . . . . a water buffalo.

A. ride | B. riding |C. to ride| D. rode

12. Would you mind. . . . . . . . the windows

A. to close|B.close|C.closing |D.closed

Adj+to V...

I/too excited / do / anything

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

Lan/glad/see/her old friend again

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

The student / worried / hear / the new information

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

She/ strong enough / carry / all those heavy bags

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

Tam / intelligent enough / finish / the test / an hour.

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

He / too sick/ go / school / yesterday

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

Ba delighted / receive / his close friend's letter

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

The children / happy / get / toys / Santa Claus / Christmas.

=>

Lien / skillful enough / make / her old clothes.

=>

They / smart enough / win / the English contest.

=>

Riding your bike fast is dangerous

It is.....

Watching the circus on television is funny

It is.......

Thu is happy. She wins the competition again

Thu is......

She heard a sad news from her friends. She was so unhappy.

She was......

Phong is anxious. He's moving to a new school

Phong is.......