Ex 1.
1.but
2.or
3. and( bỏ the city suffers from ởvế 2)
4. so
5. because
Ex 2
1. after
2.on
3. for
4. off
5.
6. away
7. in
8.up
9.up
10. off
Ex3.
1. Nobody is watching the TV so turn off it.
2.There is always litter here. No one ever pick it up.
3.‘Do you want this box? ‘No, you can throw it away.
4.‘Do you know the meaning of this word?’ ‘No, have you look up it in the dictionary.
5.Shhh! The children are asleep. Don’t wake them up.
6.It’s quite cold outside. Put on your coat! Yeah, I’m putting it on right now.
7.Have you washed up the dishes? - I’m going to wash up them
8. I haven’t heard from my sister recently. Perhaps I should ring her up now.
9.I wanted to buy a shirt from that shop, but when I tried on,it didn't fit me.
10. ..... fill in it.
11. ..... turn it on.
12. ......is looking for ........
Ex 4 .
1. and 2. so 3. however 4.therefore
5.so 6.but 7. because 8.however
9.because 10.or
Ex5
1.to stop 2. dining 3.take 4.helping
5.go 6.leaves 7. do 8.seeing
Ex6
1. to stop
2.dining
3.take\
4.leaves
5.helping
6.go
7.do
8.asking