I. 单选, 选一个最佳答案。 (每小题1分，共20分)。
1. Both you and I ___ wrong.
A. was B. am C. were D. is
2. They ____ many happy hours ____ along the beach during that holiday.
A. spend, walking B. spent, walking C. cost , walking D. gave, walking
3. ______ adults began to learn English in this small town.
A. Thousand of B. Thousands of C. Thousand from D. Thousands from
4. Can you tell me _____ has invented the train?
A. what B. who C. when D. which
5. Do you know where ______________ some maps?
A. can I buy B. can buy C. I can buy D. buy
