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: put the verbs in brackets into the correct tense forms.
1. we (not be able) … to gain this power until the current technology (be changed) … .
2. we (tell) … him when he (return) …home from work.
3. i (not pay) … you until i (get) … the pay cheque.
4. i (not talk) … with him until he (apologise) … to me.
5. when the phone (ring) …, somebody (pick) … it up.
6. till the streets (be) … full of cars, i (stay) … here.

1. we won't be able to gain this power until the current technology is changed.

2. we will tell him when he returns home from work.

3. i won't pay you until i get the pay cheque.

4. i won't talk with him until he apologises to me.

5. when the phone rings, somebody will pick it up.

6. till the streets are full of cars, i'll stay here.

what do you like doing in your free time?

1. our parents don't play sports, do they?

2. the cat likes milk, does it?

3. there are lots of books on the table, aren't there?

4. your brother has got a lot of money, hasn't he?

5. my dress is too big, isn't it?