Make the sentences negative and interrogative:
1 of talented scientists and inventors in both of them.
2. It also should be noticed in America they paid more attention to the development of .
3. The next step that led to the further lag was ... and putting into production the next .
4. American elaborations in the field of .
5. Another interesting aspect of the Ukrainian computer development was .. .
6. At the time when the computer science was ...

You should adjust your expenditure to your income  -деньги следует тратить в соответствии с доходами; по одёжке протягивай ножки
another two minutes and i should have missed the train - ещё две минуты, и я бы опоздал на поезд
they should be fully apprised of the situation - их надо ввести в курс дела
you should bethink yourself of your duty - вы не должны забывать о своём долге
children should be seen, and not heard - в обществе взрослых дети должны молчать
Members of a family should cling together in times of trouble. — В тяжёлые времена члены семьи должны держаться вместе.
traffic signs should be conspicuous - дорожные знаки должны быть хорошо видны
this animal should be caged (in) - это животное надо держать в клетке
discipline in space should be steel hard - дисциплина в космосе должна быть железной
you should get out of that bad habit - ты должен избавиться от этой дурной привычки

1) What does your grandfather often drink for supper?
2) Do you like to sing folksong ?
3) How many lessons does your elder sister have on Wednesday?
4) What game do they play at the school sportsground?
5) When does your little brother usually wake up?
6) With whom does your friend go to the park on Sunday?
7) Does your dog play with your toys?
8) Do his father and grandfather play chess every evening?
9) How often does your grandmother write letters to her friend?
10) Do you watch video films every day?
11) Who goes in for running? 
12) When do you go to the country with your parents?