What yesterday?a.happens b.happenedWhat yesterday?a.happens b.happened c.happening d.happen怎么做

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What yesterday?a.happens b.happenedWhat yesterday?a.happens b.happened c.happening d.happen怎么做

What yesterday?a.happens b.happenedWhat yesterday?a.happens b.happened c.happening d.happen怎么做
What yesterday?a.happens b.happened
What yesterday?a.happens b.happened c.happening d.happen怎么做

What yesterday?a.happens b.happenedWhat yesterday?a.happens b.happened c.happening d.happen怎么做
选B

b

b.happened 一般过去时

b
happened
what 是主语,happened是谓语,描述昨天yesterday发生的事件。

B yesterday是昨天,应该用过去式。

什么

b,,, 过去式

b

B

B

选b,因为昨天是过去时态,所以要用过去时