Задание: a look at this page from Tony39;s personal organizer and

 Monday - call Jack,tell him about Sams letter. Tony will call Jack to tell him about Sams letter on Monday.

 Tuesday - write to Sam   Tony will write to Sam on Tuesday.

 Wednesday - take the clothes to the cleaners. Tony will take the clothes to the cleaners on Wednesday.

 Thursday - cut the grass Tony will cut the grass on Thursday.

Friday - shopping the food Tony will do shopping the food on Friday.

Saturday - tennis at 11 a.m.  Tony will play tennis at 11 a.m. on Saturday.

Buy a present. Mums birthday on Sunday   Tony will buy present for Mums birthday on Sunday.