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Which sentence is correctly punctuated?

The World Health Organization, as an organ of the United Nations is very helpful to Cameroon.

The World Health Organization, as an organ of the United Nations, is very helpful to Cameroon.

The World Health Organization, as an organ of the United nations is very helpful, to Cameroon.

The World Health organization, as an organ of the United Nations, is very helpful to Cameroon.

Choose the sentence that is correctly punctuated.

During the joined men and women conference children gifts were distributed.

During the joined mens and womens

During the joined men

Choose the sentence that is correctly punctuated.

He had no qualifications; however, he got the job.

He had no qualifications! however, he got the job.

He had no qualifications, however; he got the job.

He had no qualification, however, he got the job.

Choose the sentence that is correctly punctuated.

We heard someone shouting, help, help! So we ran in the direction", reported the boys.

"We heard someone shouting, help, help!

"We heard someone shouting, help, help, so we ran in the direction", reported the boys.

"We heard someone shouting help help so we ran in the direction reported the boys.