________ do you help your mother clean the house? — Once a week.

The man lives on a(an) _____ island，but he doesn’t feel _____.

Did you take part in the sports meeting last week?—Of course I didn’t, don’t you know that it was ______ because of the rain.

After discussing, the students ________ some good ideas to work on the project.

I can not use the new mobile phone. Could you please show me_______.—Sure.