Câu hỏi của uyên nguyễn

Question

hãy điền vào chỗ chấm :in the past , robots ................... teachin classes, but they can now.

Đặng Quỳnh Ngân · Accepted Answer

In the past, robots couldn't teach in classes,  but they can now.Câu trả lời: In the past, robots couldn't teach in classes,  but they can now.

Lê Như · Answer

In the past, robots are teaching classes, but they can nowCâu trả lời: In the past, robots are teaching classes, but they can now