33 The house has been built since last year
34 We have worked here for 15 years
35 Do you mind helping me to send this letter to my boss
36 Mai asked me if I liked listening to music
37 The rain was heavy so I couldn't go to school
38 It takes me 2 hours to learn English everyday
39 He is tall enough to play volleyball
40 The boy who is playing with a hall is Ba
IX/
33 .The house has been built since last year
34 .We have worked here for 15 years
35 .Do you mind helping me to send this letter to my boss
36 .Mai asked me if I liked listening to music
X/
37 .The rain was heavy so I couldn't go to school
38 .It takes me 2 hours to learn English everyday
39. He is tall enough to play volleyball
40. The boy who is playing with a hall is Ba
