Complete the sentences. Circle the right letter.
1. What's the name of the waterfall? - I ...
a) don't know ;   b) didn't know ;   c) haven't known
2. What are you doing? - I ... the Internet. I need some information about Niagara Falls.
a) browse  ;  b) am browsing  ; c) browsed.
3. Did you have a nice ctrip?  - Yes , the weather ... fine . We swam and sunbathed every day. 
a) is ;  b) was ; c) well be.
4. ... you already ... the new film about Francis Drake? - Not, yeat. It is worth waching? 
a) do ...  see ;   b) did ... see ; c) Have ... seen.
5. Jim , there ... a lot of homework to do. Let's begin with Maths. 
a) is ;  b) are  ;  c) -
6. They ... just from Karelia. Here is a souvenir for you. 
a) return ;  b) returned  ;  c) have returned.
7.  Unfortunately, the explover ... his e-mail last nigth. 
a) doesn't check  ;  b) didn't check  ; c) hasn't cheked.