С! 1) what have the children done for the concert? the teacher: is everything ready? paul: not everything. the teacher: have you sent the invitation yet? paul: yes, jay has already sent them. the teacher: have you sewn the costumes yet? paul: yes, alice and polly have just brought them. the teacher: have you decorated the hall? paul: no, we haven`t decorated it yet. we`ll do it tomorrow. the teacher: that's ok 2) какие указатели времени используются, чтобы сказать о том, что действие уже совершилось, только что совершилось, ещё не произошло? 3) read the rule and check