See the flags on top of the building? That was we did this morning． [ ] A． when
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![See the flags on top of the building? That was we did this morning． [ ] A． when](/pic/43_912129.jpg)
See the flags on top of the building? That was _______ we did this morning．
[]A．when
B．which
C．where
D．what
试题答案
答案：D
解析：what引导表语从句，在从句中作did的宾语。when引导表语从句时，在从句中作时间状语，表示“当……的时候”。which引导表语从句时，在从句中作主语、宾语、表语或定语，意为“哪一个”，表示在有限的范围内中的某一个。where引导表语从句时，在从句中状语，表示“在……地方”。 |