1. Slow down ___ .
a) in case you will get an accident
b) and you will get an accident 
c) provide that you would get an accident 
d) or you will get an accident 

2. If a bull hadn't __ the road, we would have arrived on time
a) block
b) blocking 
c) blocked 
d) blocks 

3. They have spent a lot of time and money __ careful prrparations for the activities 
a) make 
b) to make 
c) making
d) made 

4. If i had had enough money, i could have bought that new computer 
a) That new computer was too expensive for me to afford
b) That new computer was cheap enough for me ti afford
c) Although that new computer was expensive I managed to buy it 
d) Because that computer was cheap enough for me to afford 

5. Young people (A) are encouraged (B) to give creative ideas to conserve and (C) enhancing(D) the variety of life in
 the park  ( Sửa lại ) 
6. In America,(A) erosion of farmland (B) by wind and water has been a problem that can hardly (C) to be solved (D) up to now