Choose proper forms of the verbs

______ necessary calculations, the scientist

wrote them down.

Choose proper forms of the verbs

After ______ theoretically, students should

check their knowledge experimentally in the lab.

Choose proper forms of the verbs

We suppose the recent sensational achievements

in genetics ______ with the progress in mathematics.

Choose proper forms of the verbs

After

______

, this apparatus can be used for carrying out experiments in the lab.

Collecting data through any of the methods may … some ethical issues in relation to the participants and the researcher.

The commercial correspondence has changed over time and lost its bombastic and formal style, but nevertheless the … differs in some respects from the personal letter.

Modern applied tasks arising in different branches of … and engineering mostly have a non-linear character.

The effects of effective business … are understanding, education, empowerment and respect.

Different types of scientific literature exist, normally referred to as the …, secondary, tertiary and grey literature.