Question

---How clean the window is ! -----Yes ! It _______ just now .

A．has been cleaned

B．was cleaned

C．is cleaned

D． will be cleaned

Answer 1

B

解析試題分析：has been cleaned（現(xiàn)在完成時）被打掃過； was cleaned（一般過去時）被打掃了；is cleaned（一般現(xiàn)在時）被打掃；will be cleaned（一般將來時）將被打掃。原句意思是：窗子多么干凈��！是啊，它剛才被打掃了。Just now是過去時的時間狀語，本句不能用現(xiàn)在完成時。故選B。
考點：考查動詞的時態(tài)辨析。