1) when Cholpon was five years old, she could read and write.

2) Ainura could sightseeing because she sprained her ankle.

3) he could have won the match because he was sick.

4) My brother is very talented. He draws very well when he was only eleven.

5) could you go to school without uniform when you were in elementary school?

6) Yesterday I was very sick. I don’t eat anything.

7) I am very tired because I sleep last night.

8) could you quickly solve math problems when you study in the sixth grade

9) A: When could he walk *

B: At the age of twelve months.

10) Ancient people could use electricity

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