While we try to develop traditional friendship with other countries, we have to ______ with them in trade.

A．playing

B．to play

C．play

D．the play

A．in common

B．by common

C．under common

D．among common

A．to read, watching

B．reading, watching

C．reading, watch

D．to read, watch

A．to be followed

B．having followed

C．following

D．to have been followed

A．superior

B．colleague

C．superman

D．junior

A．title

B．crown

C．yacht

D．welcome

A．cheerful

B．merry

C．glad

D．joyful

A．concerned

B．conception

C．concerning

D．revealing

A．less

B．a few

C．least

D．few

A．clapped

B．wrapped

C．folded

D．clasped