選B
因為從句中省略了主語和謂語,過去完成時通常都要和一般過去式形成對比.從句是re-entering,沒有表現(xiàn)出過去時的用法,因此前面不宜使用過去完成時.
he___the display for several mimutes before re-entering his shop.
he___the display for several mimutes before re-entering his shop.
a) was gazing at
b) gazed at
c) had gazed at
d) had been gazing at
選擇哪一個,及為什么
a) was gazing at
b) gazed at
c) had gazed at
d) had been gazing at
選擇哪一個,及為什么
英語人氣:105 ℃時間:2020-05-12 05:30:42
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