Ино 7 класс put the verbs in brackets into present perfect or present perfect continuous/ 1. can we go soon? ) around the store for the last two hours! 2.i ) through these cookbook s for a good recipe for over an hour, but i cant decide on one. can you help me? /try) the new chinese restaurant that opened last week? 4.do you want to go shopping? i (not/spend) my birthday money yet and i want to buy a new dress. 5.phillip /buy) anything from a flea market . put the verbs in brackets into past perfect or past perfect continuous. 1.mum was angry at me because she (clean) the house all morning but i stepped in my dirty shoes. 2.sally didn't help with the dinner party last night. we (prepare) everything by the time she got home. 3.tracy was so happy to see her uncle because she (not/see) him for 8 month. 4.jenny was not upset that i called her so late because she /go) to bed yet. 5.lisa was exhausted yesterday as she ) for a history exam all day.
2)Early computers gave false impression about their capabilities. - TRUE
3)Logical operations are computer's ability to compare two values. - TRUE
4)The major difference between the computer and tools lies in the flexibility of the program. - TRUE
5)Embedded computers are found only in typewriters and ovens.- NOT STATED
6)Microwave oven's program is flexible and could be changed because of the embedded computer. - NOT STATED
7)Numeric data consist of numbers, decimal points and the (+) and (-) signs. - FALSE
8)Computer can accept human speech as an audio-visual input data. - TRUE