Good luck and hope _____ you again sometime soon.
A:sees
B:seeing
C:see
D:to see
— Yes. It is ____________ to hold more than one thousand people.
下图表示的是一个生态系统各成分间的相互关系。请据图回答下列问题:
____的戈壁 ____的界限 ____的身影
____的白杨树 ____地抚摸 ____地闪过