The boy is ________ to greet us every morning .
A.polite enough B. enough polite
C.too patient D.so patient
--How long has Robert _______? ---Since 2000.
A. been to Beijing B. joined the art club
C.become a policeman D. studied in this school
What do you usually use your computer _________ ?
A.in B. with C. for D. to
Would you mind ___________ me how to start this online tour ?
A.show B. to show C. showed D. showing
Mr Wang isn’t here , I think he __________ Shanghai .
A. went B. went to
C. has gone to D. has been to
--- Lily is ill in hospital .---Really ? I _____ know she was ill .
A.don’t know B.know C. knew D.didn’t know