12.Well, you can buy $20 tickets or 30 $ tickets, ______ you prefer.
A.which B.whichever C.whatever D.what
13.We agreed to accept ______ they thought was the best tourist guide.
A.whatever B.anyone C.whichever D.whoever
14.Nowadays in India, women with independent incomes are refusing to______to the traditional practice of arranged marriage.
A.give in B.pick up C.hand in D.make up
15.______ almost all our time to our schoolwork in the past three months, we have almost no time for fun and play.
A.Having devoted B.Devoted C.To devote D.To have been devoted