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【单选题】
We need to___on that project before we invest in it.
A.
make some research
B.
do some research
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Businesses that abuse the environment are partly responsible for the problem of___.
A.
weather change
B.
climate change
【单选题】The ___buys most of its coffee from Fair Trade organizations.
A.
coffee shop
B.
coffee store
【单选题】___are those in developing countries where businesses see the possibility for growth and are making new investments.
A.
Startup markets
B.
Emerging markets