问题
选择题
—Has Mary been back?
—Not yet.She will come back ________ the evening of June _______.
A.at,first
B.to,thirtieth
C.on,the twelfth
D.on,the nineteen
答案
答案:C
考查时间介词和序数词。“玛丽回来了吗?”“还没。她一月二十晚上回来。”指具体的一天或上下午、晚上用介词on,排除A、B;D项的日期没有用序数词形式。故选C。