He is always singing because he thinks he is the happiest man ________ .

[　　]

________ your help, I am making progress in my studies.

[　　]

We ________ each other when we were teenagers.

[　　]

The aged ________ in our city.

[　　]

These pears are not of ______ but they are ______.

[　　]

A．the same size / of the quality

B．same size / of quality

C．the same size / of quality

D．same size / of the quality

The news if too good to be ______.

[　　]

A．really B．real   C．true D．truly

I am going to work in another city, so I have put the sign _____ in front of my house.

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A．On Sale　　B．For Sale　　C．Sale　　D．Sell Off

As they usually receive the same score on examinations, their teacher can't decide ______ is the ______ student, Bob or Helen.

[　　]

A．which/good　　　　B．who/better

C．whom/best　　　　 D．whose/better

The happiest people in the world ______ those ______ help to bring happiness to others.

 [ ]

A．are/whose　　 　B．is/who

C．are/whom　　　　D．are/who

The Blowns were sitting ______, reading books when I entered.

[　　]

A．at table　　 　B．at the table

C．at tables　　　D．at the tables