The singer’s flight was due to bad weather, resulting in the show .

These　good　sare＿＿for　export，though　a　few　of　them　may　be　sold　on　the　home　market

If _______ in class, you will have to clean the classroom for a week as a punishment.

I have two hobbies. One is drawing and is singing.

The mobile phone has changed people’s life a lot ________ it was invented.