83.Mai can’t come to the phone because she ………………………… (wash) her hair. 84.Water ………………………… (consist) of hydrogen and oxygen. 85.you ………………………… (understand) what the teacher ………………………… (say) yesterday ? 86.I ………………………… (not sleep) well last night. 87.Who ………………………… you (meet) at the meeting two days ago ? 88.San Francisco ………………………… (lie) to the north of Los Angeles. 89.Ali ………………………… (lie) on the grass in the park right now. 90.Marconi …………………………… (not invent) the telephone. He ……………………………… (invent) the radio. 91.Where …………………………… they (spend) their last summer holiday ? 92.A: Where are Ken and Kate ? B: They ……………………………… (wait) outside . 93.Computers ……………………………………… (become) more and more important in our lives. 94.Your children ……………………………………… (grow) up very quickly. 95.Look, there’s Mary. Who …………………………… she (talk) to ? 96.How much money ………………………………… you (earn) a month ? 97.The River Thames ………………………… (flow) through London. 98.I often (try) ……………… to read newspapers in English but I (not understand) ………………….… very much. 99.Our neighbours (have) ………………………… two cars. 100. Penny (come) …………………… from Calgary in Canada. 101. I (see) ………………………………… him twice before he left for New York. 102. The train already (leave) ………………………………………… when I arrived at the station. 103. After he (finish) ………………………………… his exam, he went to London. 104. He (work) ………………… in a supermarket before he (work) ……………… as a postman. 105. He just (start) ………………………… to watch TV when the telephone (ring) ………………. 106. Before she went to bed, she (listen) ………………………………… to her favourite CD. 107. She (go) ………………………… home after she (do) …………………………… her shopping. 108. Tom was very angry because Mary (shout) ………………………………… at him. 109. Jane (finish) ………………………………… her work by the time we got there. 110. By the time you (arrive) ………………………… yesterday, we (finish) ………………… our dinner. 111. The children (make) ………………………… a lot of noise now. I (be) ………………………… afraid they (wake) …………………… up my father, who (sleep) …………………… in the next room. 112. Linda was busy when we (go) ……………………… to see her yesterday. She was studying for an exam. We (not want) …………………… to disturb her so we (not stay) ………………… very long. 113. When I first (tell) …………………… Tom the news, he (not believe) …………………… me. He (think) ………………………… that I was joking. 114. Last night I went to a party. When I (get) ………………… there, the room (be) …………………… full of people. 115. Mr. Black often goes to the theatre but his wife (not go) ……………………… very often. He (like) ……………………… all sorts of plays. She (prefer) ……………………………… comedies. Tonight they (watch) …………………………… a very modern comedy. They (enjoy) …………………….it but they (not understand) ………………………..… some of the jokes. 116. What you (do) ………………………… the day before yesterday ? 117/ Nam and Mai (not go) ………………………… to the tennis club last Saturday because it (rain) ………………………… a lot . 118/ Where your mother (be) …………………………………… yesterday morning? 119/ At the moment I ………………………. (study) English , my mother ………………………… (prepare) lunch, and my brothers …………………………… (play) chess. 120/ He (call) ……………………………… before he …….............. (leave) for New York last week. 121/ You ………………………… (have) a nice weekend in Paris ? 122/ When you ………………………………… (buy) this car ? 123/ I am tired. I ……………………………… (walk) ten miles.