9) Listen! Somebody ... (whistle) this horrible song in the street again!.
is whistling
16) Where have you been? Your mother ... (call) you all day!
has been calling
10) She ... (teach) Physics for more than fifteen years.
has been teaching / has taught
7) I ... (know) this song since I was a child.
have known
5) How long ... (they/argue) ?
have they been arguing
2) We ... (plan) for my sister's wedding for months! Now the day is here!
have been planning
13) She ... (go) to the bank to pay some bills. She'll be back in an hour.
has gone
3) He ... (always/talk) about his life and what's he doing but he doesn't care about anyone else!
is always talking
1) They ... (never/see) the Eiffel Tower before.
have never seen
12) The teacher ... (give) us really difficult tests this year.
has been giving
6) She ... (think) about changing her job because she isn't happy about it.
is thinking
15) The baby......(sleep) for 2 hours
has been sleeping
11) More and more people ... (recycle) their rubbish.
are recycling
4) I ... (prepare) for my maths test tonight so don't call me then.
am preparing
14) Ralph ... (get) frustrated because the meal he ordered .. (not/be/served) yet.
is getting / hasn't been served