Exer 3:Hoàn thành các bài tập và các câu sau với thì hiện tại hoàn thành và quá khứ đơn
1) The police..................................................two people early this morning. ( arrest)
2) She........................to Japan but now she...........................back. ( go -  come)
3) Dan............................two tablets this year. (already/ buy)
4) How many games..............................so far this season? (your team/ win)
5).........................the CN Tower when you.............................in Toronto? (you/visit -  stay)
6)..........................your homework yet? – Yes, I............................it an hour ago. (you/do -  finish)
7) There....................................an accident in High Street, so we have to use King Street to get to your school. (be)
8) I...........................Peter since I..............................last Tuesday. (not/ see -  arrive)
9) Frank.........................his bike last May. So he..............................it for 4 months. (to get - have)
10) I'm sorry, I...............................earlier, but I.................................a lot lately. (not/to write -  work)