Why did the car hit the boy— Because the driver ______ on the phone at that time.

It is hard to imagine what I ___today if I hadn’t been admitted to Nankai Middle School 15 years ago

Let’s learn to use the problem we are facing ______ a stepping-stone to future success

thought the plan he____at the meeting____.[ ]

Could you check my list to see I have forgotten anything—No problem.