people _______ moving all the time to find food.
A)was B)been C)were
17)but about 12000 years ago, In the middle East, people_______ to grow food.
A)began B)begin C)begun
18)farming made ______ possible
A) this B)it C)them
19)for people to stay in _________ place and slowlytheir villages got bigger.
A) one B) the C) other
20)became free to do other work, like making clotes, _________ the farmers could grow food for everyone.
A) but B) or C) because
21)then some people did not get _________ food to eat.
A) enough B) all C) many
22)today, farmers ________ grow more food
A) need B)can C) have
23)It travels thousands of kilometres from where it ________ grown to our homes
A)be B)being C)is