47
2. We can’t understand the documents because they …… in
German (is written, are written, will be written, were written).
3. These commodities …… at our
plant and they are of good
quality (are produced, will be produced, were produced).
4. The science of economics …… by economists into macro-
economics and microeconomics (was classified, is classified, are
classified).
5. Computers …… to shorten the
time between designing and
manufacturing (are used, is used, will be used).
Достарыңызбен бөлісу: 
