Of rivers, seas and oceans are used definite article. 2) next weeks' meeting has been cancelled. 3) great britain lies eastern part atlantic ocean. 4) jill has got three weeks' holiday. вставить артикли. нужны ли вообще артикли?

1)..Thenames of ..---.. rivers, seas and oceans are used with..a... definite article. 2) ..A... next weeks' meeting has been cancelled. 3) ...--.. Great Britain lies in..the... eastern part of...the.. Atlantic Ocean. 4) Jill has got ..a... three weeks' holiday.