Open the brackets using the verbs in Present Continuous, Past Continuous or Present Perfect Continuous:

1) Who were you (talking) to on the phone when I came in?

2) What language is this foreigner (speaking)? I can't understand a word.

3) - Is it (raining)? - Yes, it (has been raining) since early morning.

4) I (have been doing) housework all the morning and I haven't finished yet.

5) He got off the train while it (was going).

6) It (was snowing) when we (were going) to the airport.

7) Look! The children (are watching) television. They (have been watching) it for two hours already.

8) The postman came when I (was having) breakfast.

9) Nick (has been collecting) stamps ever since he left school. He has a big collection now.

10) We (have been standing) at the bus stop for half an hour and the bus hasn't come yet.