Question

---You were out when I went to your house this morning.
---Oh, I _______ for a friend from England at the airport.

A．was waiting

B．waited

C．a(chǎn)m waiting

D．have waited

Answer 1

A

此題重點(diǎn)考查過去進(jìn)行時(shí)態(tài)的基本構(gòu)成和基本用法，was/were+動(dòng)詞的ing形式，表示在過去某一時(shí)間里正在進(jìn)行的動(dòng)作或存在的某種狀態(tài)。