— ____ that you came here yesterday?

　 — By train.

　 A. How it was B. How was it 　 　 C. How were you　　 D. How are you

从所给的四个选项中选择最佳答案

　One day a man was walking along the bank of the River Sarwan．He saw 　1　 in the water．It was a small 　2　 of gold ... and there were 　3　 pieces like it in the water．Some were big, 　4　 were small．The man who found these pieces of gold in the 　5　 became a rich man at 　6　 ．But that was not the end of the 　7　 ．In a little time 　8　 was talking of only 　9　 thing: Gold!

　Everyone wanted to be 　10　 , like the man who 　11　 the pieces of gold in the river, 　12　 came from everywhere to look for gold．They 　13　 all the ground near the 　14　 of the river．They made big 　15　 in it, trying to find 　16　 gold．Some men found 　17　 ; others found 　18　 at all．

　Many of those who came here were 　19　 men．They had guns．When they were 　20　 or had too much to 　21　 , they made a lot of trouble．Good men were afraid of them 　22　 they could do nothing．Our town was not the 　23　 place as before．It became 　24　 and richer but for a long time it didn't have a good 　25　 because of the bad men who came there to find gold．

从所给的四个选项中选择最佳答案

It is five days ________ we came here．

[　　]

A．since　　　B．as　　　C．before　　　D．when