High-speed trains travel at 300 kilometers an hour, which is about __________ normal trains. A: four times the speed as B: the speed four times of C: four times as the speed of D: four times the speed of

How did those books on model trains and real trains the author had in his childhood influence him A: They helped build his innocent dream of being a train engineer. B: They helped him acquire lots of knowledge of trains. C: They helped build a more intimate relationship with his families. D: They helped him build his imagination and acquire his earliest notions of heaven.

Train passengers for Hastings must… A: sit in coach A or B: change trains in Tonbridge. C: change trains in Ashford.

High-speed trains often require

This will __________ pressure on the trains to some extent.

Electric trains have now ________ steam trains in our country. A: taken the place of B: given place to C: changed places with D: taken their place of

Freight trains sometimes end with a caboose car.

High-speed trains are generally operated on dedicated lines__1__.

Which of the following technologies is NOT mentioned? A: Smart phones. B: Delivery robots. C: Smart trains. D: Wearable devices.

Long distance trains aren’t popular in the USA.