坚定价值观自信的理由和底气是国家政策的强制执行。
A. 对
B. 错
The next train _____ was from Beijing.
A. arrive
B. to arrive
C. arriving
D. arrived
I am looking forward to ________from you as soon as possible.
A. hear
B. to hearing
C. hearing
D. have heard
The building __________ will be completed in two months.
A. to paint
B. being painted
C. to have painted
D. painting