Can, Could, Wil be able to - Động từ khuyết thiếu

Front

In the past, robots ...... teach in classes, but now

Back

couldn’t

Front

Robits can't talk now. IN 2030, they ....

Back

will be able to

Front

Mr Van ..... run fast when young. Now he ....

Back

Could

Front

In 2030, robots will talk to us, but they ..... do more complicated things

Back

won’t

Front

My little sister is very clever. She .... already read some words.

Back

can