Last weekend my mother and father (go) ...went to the country (see) ..to see
my grandfather and grandmother. I (be)..was at home alone. I (play) ..played
computer games, (do) ..did my Maths and foreign language homework, (draw) ...drew a nice picture for my Art lesson on Monday.
Soon i (feel) felt hungry. But there (be) ...was nothing (eat) ...to eat in
the fridge (холодильник). So i (go)went to the shop. I (buy)bought lots of
food: It's nice (be) ...to be at home alone.
Next Sunday my family (go) ..are going to their friends.
And I (stay) will stay at home again.
By that time his parents had already enjoyed travelling by sea. Past Perfect
By Christmas his parents will have enjoyed travelling by sea. - Future Perfect
2. Susan has never travelled by train. - Present Perfect
Susan had travelled by bus. - Past P. (=Perfect)
By the end of the month Susan will have travelled by train. - Future P
3. Her friends have just travelled by bus round Europe. - Present P
By that time her friends had just travelled by bus round Europe. - Past P.
By the end of the week her friends will have travelled by bus round Europe. - Future P.
4, They have just arrived. - Present P.
By that time they had already arrived. - Past P.
They will have arrived by the end of the week. - Future P.