问题
选择题
The train is going _______ the tunnel. Then it will go ______to the center of the city.
A．through; towards
B．through; straight
C．across; towards
D．across; straight
答案
答案：B
题目分析：句意：火车将要通过隧道。然后它将直达城市中心。Go through经过，go straight直走，towards朝着，后面跟名词。所以选B。