问题
One of the orders that we receivedwas that we ______ there on time
A:atall man in his thirties stepped
B:stepped a tall manin his thirties
C:did a tall man in his thirties step
D:did a tall man step in his thirties
B:stepped a tall manin his thirties
C:did a tall man in his thirties step
D:did a tall man step in his thirties
正确答案是：
