问题
Have you been here before?—- This is the second time I ______to the Great Wall
A:comes
B:have been
C:came
D:had come
B:have been
C:came
D:had come
正确答案是：
同类题型
I’m _______ building a new zoo because I think zoos are terrible places for animals to live in.
we must ___ to the public the simple fact that drug are dangerous.
How are you getting along with Jim now—Well, OK now. But he _______ until I apologized.
283. We love peace and______ peace, knowing that peace is the climate of freedom