1.i have to study hard.

=>i wish I didn't have to study hard.

2.we had a lot of homework yesterday.

=>i wish we hadn't had a lot of homework yesterday.

3.it is raining heavily.

=>i wish it weren't raining heavily.

4.it was cold last night.

=> i wish it weren't cold last night.

5.they work slowly

=>i wish they didn't work slowly.

6.she doesn't join in the trip.

=>i wish she joined in the trip.

7.i am not good at english.

=>i wish I were good at English..

8.he studies badly.

=>i wish he didn't study badly.

9.he doesn't like playing sports.

=>i wish he liked playing sports.

10.i don't have a computer.

=> i wish I had a computer.

11.to day isn't a holiday.

=>i wish today were a holiday.

12.i can't sing this song.

=> i wish I could sing this song.

Đáp án :

1.i wish I didn't have to study hard.

2.i wish we hadn't had a lot of homework yesterday.

3.i wish it weren't raining heavily.

4. i wish it weren't cold last night.

5.i wish they didn't work slowly

.6i wish she joined in the trip.

7.i wish I were good at English..

8i wish he didn't study badly.

9.i wish he liked playing sports.

10 i wish I had a computer.

11.i wish today were a holiday.

12. i wish I could sing this song.

   @ Nam Khánh 

  cho mk  xin ctlhn ạ