GỢI Ý BÀI GIẢI
35. Nuclear power is not only expensive but also dangerous to our environment.
36. The host band started off the concert by presenting a mashup of their hit songs.
37. If you change the way you learn vocabulary, you can improve your English.
38. Robert suggested that those empty bottles be collected for recycling.
39. Tom is very lazy, so he can not get good marks at school.
40. Michael is fond of playing football after school.