Вставить пропущенные слова в предложения. 1)What are you doing?I....the Internet.I need some information about Niagara Falls.a)browse b) am browsing c) browsed 2) ...you already ...the new film about Francis Drake?-Not,yet.Is it worth watching?a) Do ...see b) Did ...see c)Have ...seen 3) Jim,there ....a lot of homework to do.Let′s begin with Maths. a) is  b) are c)- 4) They ...just from Karelia. Here is souvenir for you.  a) return  b) returned   c) have  returned  5) Unfortunately, the explore ....his e-mail last night. a) doesn′t check b) didn′t check  c) hasn′t checked