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C. took D. taking ( )3We were swimming in the lake ____ suddenly the storm started. A. when B. while C. until D. before ( ) 4_______ I felt very tired, I tried to finish the work. A. Although B. Because C. As D. As if ( )5 Must I do my homework at once? No, you___. A. needn39。 must ( ) 7 You39。the C the。 climb C. It。 one billion,three hundred and seventy million,five hundred and thirtyseven thousand C How much。 one billion,three hundred and seventy million,five hundred and thirtyseven thousand ( ) 25What is the temperature? It’s _______ minus five degrees and minus two degrees. A from B between C among D with ( )2 I _______ a film at 6:00 pm yesterday afternoon. A、 see B、 was seeing C、 saw D、 am seeing ( )2 She __________a film yesterday afternoon. A see B、 saw C、 was seeing D、 is seeing ( )2 They________ a tea party in the garden at 7:00 last Sunday. A 、 are having B、 have C 、 were having D 、 were haveing ( )2 What are you doing ? I ______with my sister by the river A、 am sitting B、 sitting C、 was siting D、 was sitting ( ) While she was falling , she____________about her cat . A、 think B 、 thinking C、 thought D、 was thinking ( )3 _______you _________a book at this time last summer ? A、 Were\ writing B 、 Are\ writing C、 Did \write D、 Did \wrote ( )32 、 I was trying to pick the snake up