cho hai góc kề bù aob và bot. gọi om là tia phân giác của aob. trong góc bot, vẽ tia on vuông góc với om ,chứng minh rằng: on là tia phân giác của bot

CTV là gì vậy mọi người?

wow

use the following sets of words and phrases to write complete sentences                                        your father/and/play games/when/he/primary school?

our club/often/make/gloves/old people/nursing homes/ afternoon 

give the correct form of the words in brackets                      
    what this is...............................(beautiful)house in the village

rewrite the following sentences without changing the meaning of the root ones

our guests arrived late because of the heavy rain

=> because.....................................................................

this girl is ignorant beause she is lazy

=> becase of .................................................................

julia doesn't go to school because she is ill

=> because of her ..............................................................

althiugh he had a good salary, he was unhappy in his job

=> in spite of ........................................................

i got very wet in the rain.i had an umbrella

=> although.......................................................................

rewrite the following sentences without changing the meaning of the root ones

1. he couldn't meet you because of being busy(because)

2. she can't work hard because she is very old(because of)

3. she went to bed early because of her sickness(because)

4. he likes her because she is very beautiful(because of)

5. nobody can do this test because he was very poor(because of)

6. he couldn't go to school because he was very poor(because of)

7.two cars can't pass each other because of narrow road(because)

8. we spent the whole day i the garden because of lovely weather(because)

put the verb in the present simple or the present progressive tenses

they (cook) ............................... dinner in the kitchen at the moment

he  ............................... (live) in France Alps near th Swiss border

you can't see Tom now. he ............................... (have) a bath

they  ...............................(like) films but they  ............................... (not/go) to the cinema very often

the problem  ............................... (study) carefully by the scientists so far

we ............................... (go) to the theater tonight . we've got two tickets

i promise l  ...............................(keep)my room clean

we  ............................... (clean) our roomm next sunday 

combine two sentences into one , using the cues 

32. they went fore a walk. the weather was bad(but)

33. our teacher didn't arrive late. the traffic was terrible(although)

34. she wears glasses. she wants to see better(because)

35. he got wet. he forgot his umbrella(therefore)

36. we are saving money. we want to buy a new house(so)