单项选择题
A．will work B．may work C．must have worked D．could have worked
Dick has never been on time,（） A．has Dick B．hasnt Dick ...
单项选择题Dick has never been on time,（）
A．has Dick B．hasn't Dick C．has he D．hasn't he
John had an argument with Henry,（）was known to all A．wh...
单项选择题John had an argument with Henry,（）was known to all
A．what B．that C．this D．which
Is this house the one（）you once lived in your childhood...
单项选择题Is this house the one（）you once lived in your childhood
A．where B．when C．what D．which
