`1.B`

`+` source of information : nguồn thông tin

`2.D`

`+` If `1:` If S +V (s/es) , S + will/may/can + V ( diễn tả sự việc có thể xảy ra ở hiện tại , tương lai)

`3.B`

`+` get a job : kiếm/nhận việc làm 

`4.C`

`+` which thay thế N chỉ vật , làm chủ ngữ/tân ngữ trong câu

`5.D`

`+` Xuyên suốt bài đọc đề cập tới , nhắc lại nhiều lần về chủ đề " Cycling in London "

`6.B`

`+` D/C: There are not enough lanes especially for bikes, and making your way through the traffic can be very risky.

`7.A`

`+` D/C : But if you have great passion, cycling in London can be exciting, and it is an inexpensive way of keeping fit if you live there.

`8.A`

`+` D/C: Wearing a cycling helmet is not compulsory in Britain, but it is a good idea to wear one for protection.

`9.`

`=>`

`+` No one in our team plays football as skillfully as John does.

`+` No one in our team plays football more skillfully than John.

`@` Cấu trúc :  S + be/V + the + so sánh nhất + ....

`=` No one + be/V + so sánh hơn + than S

`=` No one + be/V + as + adj/adv + as S

`10.` Although Mr. Pike is old, he doesn't wear glasses.

`+` Although + MĐ `=` Despite + N/Ving: mặc dù 

`11.`Here are the books which are on wild animals.

`+`  which thay thế N chỉ vật , làm chủ ngữ/tân ngữ trong câu

`12.` Trang spent the whole day painting the picture.

`+` It + takes/took sb time + to V `=` S + spend(s)/spent time Ving :dành thời gian làm gì