English Grammar online test | Use ‘able to’ | Use unable to

Rewrite the sentence using ‘able to’.

He could attend the meeting on time.

Rewrite the sentence using ‘unable to’.

He could not attend the meeting on time.

Rewrite the sentence using ‘unable to’.

Physicians can’t tell about a patient’s wellness.

Rewrite the sentence using ‘able to’.

He can speak English fluently.

Rewrite the sentence using ‘able to’.

They can complete the work on time.

Rewrite the sentence using ‘able to’.

She can solve this problem easily.

Rewrite the sentence using ‘able to’.
Physicians can tell about a patient’s wellness.