Complete the sentences with appropriate verbs. Use the same verb for each sentence in the pair. Choose the present continuous if possible; if not, use the present simple.
1 a It.... us a fortune at the moment to send our daughter to dance classes.
b It ......a fortune to fly first class to Japan.
2 a I..... sitting down at the end of a long day and reading a good book.
b It's a wonderful book. I............ every moment of it.
3 a We've always wanted a house in the country, but we...... on where it should be.
b When they agree with each other on so many important issues, I can't understand why they..... now on this relatively minor matter.
4 a With growing concerns about the environment, people .......to use recycled paper products.
b He doesn't like publicity, and...... to stay firmly in the background.
5 a 'Can I speak to Dorothy?' 'She ....... a shower. Can I take a message?'
b My brother ......three children, all girls.
6 a Although he....... three cars, all of them are extremely old.
b In the north of the country, fewer and fewer people .................. the houses they live in.​