Only when_______ 30 years old ______ to learn English.
—I’ll go camping this weekend. — .
____________for children, the album became popular with Parents __________it came out.
—Why is your wife wearing a mask in such good spring? —Because she is_________ to flowers.
The old gentleman is considering _________he will move to New York with his daughter and son-in-law or live alone at home.
The police are looking for the witnesses,__________ words will make a difference to the victim.