— I’m afraid I won’t be able to get to the top of the mountain. It’s hard for me.— Keep on! I’m sure you have a strong _________.
—________ will your father be back? —My father will be back in half an hour.
Old people should ________politely.
—What happened ________Sarah? —She failed in the English test.
Several ________ students came to the meeting.
This book is ________for a six-year-old child to read.