$8$ `:` My father drove carefully because he didn't want to cause accidents.

`-` Because dùng để chỉ nguyên nhân

`->` Because `+` S `+` V `+` O.

$9$ `:` This CD was popular than the previous one.

`-` S1 `+` be `+` not `+` as `+` adj `+` as `+` S2.

`->` Đây là so sánh không bằng

`=`

`+` S1 `+` be `+` `+` more `+` long adj `+` than `+` S2.

`+` S1 `+` be `+` `+` short adj `-` er `+` than `+` S2.

`->` Đây là so sánh hơn

$10$ `:` It is believed that the robber has worked in the bank.

`-` S `+` believed `+` ( that ) `+` S `+` V `+` O.

8. My father drove carefully, because he didn't want to cause accidents.
9. This CD was popular than the previous one.

-S1+be not+as+adj+as+S2

=> S2+be+adj+than+S1
10. It is believed that the robber has worked in the bank.

-It+bị động (be+P.P)+that+S+V_giữ nguyên...