1. There is no point in taking care of that boy.
(Cấu trúc There is no point + in V-ing: không có lí nào để làm gì)

2. Since the television was invented, people have had many ways to entertain.
(Since + V-ed mà ở đây là thể bị động thì Quá khứ đơn)

1. It is pointless to take care of that boy.

=> There is no point in taking care of that boy.

GT: có cấu trúc: there tobe no point in V_ing.

2. Since the invention of the television, people have had many ways to entertain.

=> Since the television was invented, people have had many ways to entertain.

GTthuowngf sau since là quá khứ, nhưng tivi thì không thể phát minh được nên thì ở đây sẽ dạng bị động ở quá khứ đơn.