откройте скобки, употребляя глпголы в правильной форме. обратите внимание на время. 

1. they (to visit) the capital of Russia next month.

2. i can't help you now. i ( to do) my homework.

3. he always ( to take care) if his sick mother.

4. the browns (to go) to the south a week ago.

5. helen (not to help) her friend yesterday.

6. she (to play) tennis with us tomorrow?

7. could i speak to Susan?-Sorry, she (to take) a shower now.