28. --Could I ________a dictionary from you, David?

-- Sorry, I _______ it to Mary yesterday.

A. borrow; lend           B. lend; borrowed   C. borrow; lent  D. lent; borrowed

29. Parents always try to provide us __________a good environment.

A. to                         B. for                       C. with                      D. /

30. Could you mind _________ out with me when you finish _________ the homework?

A. going; doing           B. go; doing       C. go; do                  D. going; do