High-speed trains which travel through my hometown ________ up to 250 km per hour make it a small world.

Mr. Black used to be busy. But now he’s tired and , so he has plenty of time to exercise.

Our English teacher often uses different activities_ __ keep us_ __ in class.

When we first met on a train in 2000, we both felt immediately that we _____ each other for years. [ ]

Have a good day!——________!