【单选题】They decide to stop exporting wheat because as a result of the terrible drought, they ______ enough food to feed the nation.
【单选题】Money allows people to accumulate wealth because they can save as much wheat as they like.
【简答题】They decideto stop exporting wheat because as a result of the terrible drought, they are enough food to feed the nation.
【简答题】We grow rice in the south of the States, but in the north where it is colder they grow wheat.