1. Visitors who have booked tickets online can show their ID cards or other _______ documents to enter the museum.
A. blank
B. valid
C. lame
D. plain
2. _______ the changes we desire, we must be willing to behave in ways that promote them.
A. Create
B. Creating
C. Having created
D. To create
3. In the years to come, everyone will be able to take pride in ______ we responded to this challenge.
A. what
B. when
C. that
D. how
4. Not until recently ______ the development of tourist-related activities in the rural areas.
A. they had encouraged
B. had they encouraged
C. did they encourage
D. they encouraged
5. —I will go to the bank to pay for the electricity bill.
—_______? Actually, you can use Alipay.
A. Why bother
B. So what
C. Why not
D. What for