填空题Put the correct preposition in each gap to complete the
presentation. In some cases more than one answer may be
possible. The graph shows the levels of the country's
imports and exports over / during the period 1990 to 2000. If we look {{U}}
{{U}} 1 {{/U}} {{/U}}imports first, we can see that they increased
quite dramatically over the period {{U}} {{U}} 2 {{/U}}
{{/U}}question {{U}} {{U}} 3 {{/U}} {{/U}}$24 billion to $53
billion. {{U}} {{U}} 4 {{/U}} {{/U}}contrast, exports fell,
though not {{U}} {{U}} 5 {{/U}} {{/U}}the same extent. From a
level of $60 billion in 1990, exports fell to $31 billion in 2000, a fall
{{U}} {{U}} 6 {{/U}} {{/U}}50%. This was not at all in line
{{U}} {{U}} 7 {{/U}} {{/U}}the forecasts for the economy: the
trade surplus of the early 90's had been converted {{U}} {{U}} 8
{{/U}} {{/U}}a trade deficit {{U}} {{U}} 9 {{/U}} {{/U}}the
end of the decade. {{U}} {{U}} 10 {{/U}} {{/U}}the same time the
country had failed to grow their export market.