单选题
Because of the current shortage of labor in the manufacturing sector, we suggest the staff be given ______ pay raises.
A、
substance
B、
substantial
C、
substantially
D、
substantiate
【正确答案】
C
【答案解析】
[解析] “substance”意为“物质”；“substantial”意为“主要”；“substantiate”意为“证实”；“substantially”意为“充分地、相当多地”。根据单词意思，可知选C。
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