Ⅰ.用适当的介、副词填空
1．I bought cannabis from a man ________ the street.
2．Users who inject the drug are also ________ more danger if they share needles ________ other users.
3．Crack cocaine is the most addictive form ________ cocaine.
4．Users become addicted ________ crack cocaine much more easily if they smoke it.
5．When I went ________ to the man again，I wanted more crack cocaine.
6．But he asked me ________ a lot of money.
7．I didn’t have enough money ________ he didn’t give me any drugs.
8．I was ________ terrible pain.
9．The next day，I broke ________ a house and stole a television and a video recorder.
10．________ a result，cocaine users sometimes have heart attacks.
