which part of the given sentence has an error?

She don't speak of either German or French.

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.

The youngsters lined the cafe.

Rearrange the parts of the sentence in correct order.

Over population of humans is

P : the biggest factor behind so

Q : many social, sustainable and environmental

R : issues all over the world

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Airy

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Arraign

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.   

Snaky

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Perspicacious

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The server with ______ I was talking is my good friend.

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

He asked him to ______ some documents.