By the time I was nine ,I ______hundreds of English words.
I’m new at the party and I don’t have a friend ____.
The art club is for members only. You can’t go in ____ you are a member.
Jane is so shy that she is afraid of in front of a group.
I stay at home _______ on weekends, but I don’t feel ______..
In winter, we must pay attention to _________.