When you are sleeping, you had better______ all the windows closed.
—Betty, is that Linda’s sister? —Yes, it’s __________ sister.
—Excuse me, how do you __________ “basketball”? —B-A-S-K-E-T-B-A-L-L.
—What season is your favourite? —I like __________ best because the weather is very cool.
—What’s this in English? —It’s __________ ruler.
—Thank you for your help. —_____________.