一、单项选择 (共15小题；每小题l分，计15分)
* — Did you watch _________ one-hour documentary last night?
— Yes, I had never seen such _______ useful one before.
A. a, a B. an, an C. a, the D. the, a
2. — Would you like to go for a picnic to enjoy the fresh air outside this weekend?
— __________. It will be a sunny day.
A. I’d love to B. Don’t mention it
C. No, I won’t D. It doesn’t matter
3. — great progress you’ve made! Congratulations!
— Thank you!
A. What B. What a C. How D. How a
4. — Must I do the rest of the work today?
— No. You _______ finish it tomorrow.
A. must B. can C. needn’t D. can’t
