33.in my opinion,wearing uniforms is encourage students proud of their shcool.
34.the holiday was so disappointing that they decided to ask for money back
35.if there is too much exhaut fume air, more people will cope respiratory problems.
36.do you know the name of the lecturer who talked about natural disasters at the workshop 2 days ago?
37.luckily,jim didn't need to take the exam again
38.despite being intelligent,he doesn't do well at school
39.we stayed at home instead of going to the theatre
40,we must replace the loudspeakers since the current ones aren’t satisfactory
