Read the sentences. If the word in bold is incorrect, write the correct one next to the sentence. If there is no mistake, simply write 'correct'.
1 The farmer has SEEDS such as cabbages and potatoes in his fields.
2 Foods like pasta and bread are made of WHEAT.
3 I bought some sunflower CROPS. I'm going to plant them near the front door.
4 There are always a few ducks and a goat in the LAND.
5 Grandpa has a lot of FARMYARD. He keeps thousands of sheep on it.
is accepted as payment - present simple, passive voice
However, this has not always been true.
has not been true - present perfect, passive voice
In primitive societies a system of barter was used.
was used - past simple, passive voice
Cattle, grain, teeth, shells, feather, salt, tobacco have been used.
have been used - present perfect, passive voice
The main functions of money are distinguished as: a medium of exchange; a unit of account; a store of value; and, occasionally in the past, a standard of deferred payment.
are distinguished as - present simple, passive voice
When money is used to intermediate the exchange of goods and services, it is performing a function as a medium of exchange.
is used to - present simple, passive voice
To act as a store of value, money must be able to be reliably saved, stored, and retrieved – and be predictably usable as a medium of exchange when it is retrieved.
is retrieved - present simple, passive voice
Houses, office buildings, land, works of art, and many other commodities are regarded as a means of storing wealth and value.
are regarded - present simple, passive voice
These payments will be made using money, because money acts as a store of value.
will be made - future simple, passive voice