$doing+ st+is+adj=It's+adj+to+V=S+find+ st+adj.$

1. It is dangerous to put a knife into an electrical socket.

2. It is interesting to go fishing with my family on the weekend.

3. It is necessary to practice English everyday.

4. It is very dangerous to play with mathces.

5. It is good for health to play sports.

6. Doing the final test is very difficult.

7. Teasung animals is cruel.

8. It wasn't difficult to find their house in this city.

Câu 1: It's dangerous to put a knife into an electrical socket.

Câu 2It is interesting to go fishing with my family on the weekend.

Câu 3: it is necessary to practice English everyday.

Câu 3: It is very dangerous to play with mathces.

Câu 5:It is good for health to play sports.

Câu 6: Doing the final test is very difficult.

Câu 7:Teasung animals is cruel.

Câu 8: It wasn't difficult to find their house in this city.