Thfi hiện tại hoàn thành
21/ She’s got the best voice I (ever hear)…............................................……
22/ Since when………………you (learn )…...............................… English?
- I (learn )……….....……it since I (be ).........................………a girl of twelve.
23/ They (do )……………………nothing since they (get )…………………… up.
24/ I (write )……………….....................………two letters already.
25/ - I (fly) ................................................... over Loch Ness last week.
- You (see) ............................... the Loch Ness monster?
27/ This is the first time the children (travel)……..……………………..by plane.
28/- You (be).......................................here before?
- Yes, I (spend)....................................... my holidays here last year.
29/ - The newspaper (come) .............................................?
- Yes, Ann is reading it.
30/ Shakespeare (write) ................................................ a lot of plays.