Question

–I called you yesterday afternoon, but you were not at home.
--Sorry, I _________ some shopping with my mother then .

A．is doing

B．do

C．was doing

D．will do

Answer 1

C

解析試題分析：句意：---昨天下午我給你打電話了，但是你沒有在家。----對不起，我那個時候正在和我的母親購物。根據(jù)語境下文的回答應(yīng)用過去進行時，was doing 的結(jié)構(gòu)，根據(jù)句意故選C.
考點：考查動詞時態(tài)的用法。