Đáp án + Giải thích các bước giải:

6. Can we park our car here? (allowed)

→ Are we allowed to park our car here ? Cấu trúc:

                                                                 +Chủ động: S + let + O + V…
                                                                 +Bị động: S(O) + (tobe) allowed + to Vi + … + by O(S).
7. She always went swimming in the morning. (used)

→She used to go swimming in the morning. (Cấu trúc: S + used to + V)
8. They used to cross the river to school. (longer)

→They no longer crosses the river to school. (S + no longer + V) 
9. It is Jack's habit to have a nap at noon. (used)

→It's a habit of Jack to have a nap at noon. He is used to having a nap at noon.

(Cấu trúc: S + tobe+ used to + V_ing)
10. This program has become more important these days. (grown)

→ This program has grown more important these days. 

( Cấu trúc: grown + more + adj...)

$\text{6. Do you allowed us to park our car here?}$

Câu này mik cũng không chắc nha, xin lỗi bạn nhiều!

$\text{7. She used to go swimming in the morning}$

Used to + v nguyên mẫu 

$\text{8. They no longer cross the river to school}$

Mik thấy no longer cũng gần giống used to á bạn

$\text{9. Jack used to have a nap at noon}$

Used to + v-inf nha

$\text{10. This program has grown up and become more important these days}$

Câu này mik không chắc lắm đâu nha, xin lỗi bạn nhiều!