21. —What do you think about _________ dress in the shop window?

—Oh, it’s beautiful. Linda will be pleased if she can have it as _________ birthday present.

A. a; a            B. the; a            C. a; the             D. the; the

22. —Oh, must you? Stay a bit longer. It’s been such fun having you.

—_________. I’ve got an early start tomorrow morning.

A. No problem     B. All right          C. Thanks anyway     D. Never mind