例句：
1. They have been conducting tests since a week ago.
2. The price jumped more than 5 per cent last week.
练习：
1. They have been working busily since 8 o’clock in the morning.
2. My country will submit its national report between now
and next August.
3. The aim is to spur economic growth and environmental protection in a global context.
4. Complex forces that affected global activity in 2014 are still shaping the outlook.
5. Cultural and scientific contact went from strength to strength through the nineteenth and early twentieth centuries.
6. All of this reflects the desire by many governments to have a range of opportunities for pushing forward with liberalization, multilateralism.
7. We should find solutions to global energy challenges through engagement and dialogue with non-member countries, industry, international organizations and other stakeholders.
8. He has established a dialogue on human rights at the highest levels of government and with regional and national institutions worldwide.
rather
than
relying
solely
on
global
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