Put the verbs in brackets into the Present Continuous, the Present Perfect or the Present Perfect Continuous Tense.
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Ответы
is still waiting
is still sleeping
has been working
has already laid
are still fighting
hasn't arrived
has been preparing
is still raining
haven't repaired
1 We'll miss the train if you haven't packed the suitcase yet. (Present Perfect)
2 If Stuart is still waiting for me, I'll catch a taxi. (Present Continuous)
3 If Susan is still sleeping, I won't wake her. (Present Continuous)
4 If Tony has been working on this project for a week now, we should help him. (Present Perfect Continuous)
5 We can have dinner if Cindy has already laid the table. (Present Perfect)
6 We should stop the boys if they are still fighting. (Present Continuous)
7 If the taxi hasn't arrived yet, I'll wait for it outdoors. (Present Perfect)
8 Jane should take a break if she has been preparing for her exam for more than two hours now. (Present Perfect Continuous)
9 Unfortunately, we can't have a picnic if it is still raining. (Present Continuous)
10 If they haven't repaired your car yet, I can give you a lift. (Present Perfect)