Ex1: put the verbs in brackets in th correct verb: the Present Perfect or Past Simple.     
1 My mother (do)......all the cleaning. The apartment is really clean now
2 He (lose) ......... his credit card.He can’t find it anywhere 
3 Prices (go)........ up.Everything is more expensive nowadays 
4(you/ buy) .......... the laptop yet?
5 I (have) ............ this iPad for three years. My father (give) ....... me when I was grade 6 
6 I (watch) ............. the film Titanic already
7 Miss White ( work)....... in Hà Nội from 2011 and 2014
8 I (be)......... to Sa Pa twice since 2000