1.раскройте скобки, чтобы получить present simple, present continuous, present perfect continuous или present perfect.

is andy here? – i don’t know, i … (not see) him today.
where … you … (go)? – to the library.
betty’s bus … (arrive) at 5 o’clock. i must go and meet her at the bus station.
have you seen my record book? i … (look) for it all the morning.
how long … you … (work) on this problem?
they … (play) football tonight.
linda is disappointed. she … (fail) her test.
school … (prepare) children for life.
we … (have) a party next saturday night. will you come?
… you … (remember) where he … (work)?