U2, the Irish rock band from Dublin perform a concert in Beijing, tell me in adv
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_____ U2, the Irish rock band from Dublinperform a concert in Beijing, tell me in advance.
| A．If | B．Shall | C．Should | D．Would |
试题答案
【答案】
C
【解析】should意思是“万一”，表示可能性，通常用于条件句中。如果省略掉if，通常把should提前。此句可还原成If U2, the Irish rockband from Dublin performs。