The Sino-U.S. relations, although they have experienced twists and turns in the past, ______ have moved forward.
“Good morning. Can I help you?” “I’d like to have this package _______.”
. Tony was very unhappy for _______ to the party.
Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it.
With a lot of difficult problems ________, the newly-elected president is having a hard time.
The picture _______ on the wall is painted by my nephew.