Practice with prepositions of time in English

The students always got together (a)   the afternoon to do their homework.

She has traveled to many places in the world (a)   she won the lottery.

Rebecca didn't finish her homework until (a)   noon.

Our friends didn't come over until late (a)   the evening.

Paul has been going out with someone else (a)   a few months.

(a)   morning while looking out the window I saw a small man bury some

treasure under a tree.

The project should be completed (a)   a week.

Our friends wrote in their letter that they would come (a)   the following week.

The last time I heard from him was (a)   the second of May

They have been living here (a)   September.