1) If they hadn’t walked 40km, they would not be exhausted now.
2) What would have become of us, if I had come to you then!
3) He would have been scrupulous - if he had been able!
4) What is the answer if you add 5 to 75?
Are you and your friends going to join any teams next year?
Если только те номера, что обведены, то вот:
1 - is
2 - a
4 - does
6 - cheaper
7 - did you work
Where does <span>Alexander Smith</span> work? He works as a Sales Manager in
Newtech company.
Если Ваше предложение имеет контекст, то есть ему предшествовало ещё какое , к примеру, «Your temperature is all right," I said. "It's nothing to worry about." То it относится к температуре/ temperature, это и есть имя существительное.
«Нечего беспокоиться» в привычном понимании по-английски будет —There is nothing to worry about.