Тести з Англійської мови

Знайдіть усі можливі помилки у підкреслених фрагментах речень і запишіть цифри у порядку зростання. Цифра (5) означає, що помилок немає.

#1. (……) Calculators used (1) to be least (2) expensive than (3)they are (4) now. No error (5).

#2. (……) It is (1) commonly known that some (2) animals protect themself (3) with different kinds of (4) colouring and camouflage. No error (5).

#3. (……) Mechanical (1) engineering is an (2) applied scientist (3), isn’t it (4)? No error (5).

#4. (……) The state of California, a recognized leader (1) in agriculture and manufacturing, it has (2) a gross natural product that (3) is larger than that (4) of most countries. No error (5).

#5. (……) Statistic (l)as well as a course in (2) research methods are (3) necessary of (4) all research workers and scientists. No error (5).