The result of this will be to introduce to poor southern nations a patent system which——- to protect technologies and drugs in rich countries.

At last, the thief——- to tell everything by the police.

My mother was very upset when she returned home because she——-her wallet———.

As the son of a livestock family, I——- in Carson City and helped my father on the ranch.

The Sales Director——- to admit that he——— the difficulties of marketing the new product.

When three primary colours- red, blue and green——- together from seperate sources, white light——-.

The application of chemistry to the production of useful products that——- for a profit——- into the chemical industry.

The sea otter has a very valuable pelt, and it——- widely for years.

A room in the house where Goethe——- at Frankfurt in 1749——- into a museum.

The darker side of modern science——- apparent by the use of poison gas in the Gulf War.

Much of what we know about the risks of heart disease, high blood pressure and lack of exercise——- at school.

Schizophrenics——- to have abnormal color perception, and very young children learning to distinguish colors——- red or orange.

Abstract words——- with real, material objects that——- directly to the five senses.

Writing American English often involves using words from other languages, or words that——- in other languages but——— into English.

Write a paragraph that ——- why you think the balloon is a bad symbol for John.

Temperature distribution on the Earth, with its variations from to pole and over the year, ——— by a number of phenomena.

The Renaissance’s renewed interest in classical authors and models and in exploratory thinking——- to England by Desiderius Erasmus.

A pair is a set of two things which——- or normally used together.

As the linguistic repertoire of a child increases, it is often assumed that the child is, in some sense, ——- the language.

Until five years ago, Pacific——- as a benevolent family-owned firm that practiced sustainable-yield forestry.

Nitrogen oxides——- in an automobile engine when the nitrogen and oxygen of the air——-.

Before a word——-, it is apparent that some learners can learn words after only one encounter whereas for most people seven repetitions seem to be enough.

Many chemical compounds besides water——- for life to exist, the most important being “organic compounds”.

Bacteria——- to produce human insulin, but some people are afraid of products that ——- by bacteria.