问题
选择题
They are letting us use their computer, and __________ we are giving them the results of our research.
A.in charge
B.in place
C.in return
D.in a row
答案
答案:C
考查短语辨析。句意“他们让我们用他们的电脑,作为回报,我们给他们我们的研究结果。”A“掌管,负责”;B“在原位”;C“作为回报”;D“一排”。故选C。