近年来，索马里海域海盗日益猖獗。我国海军护航编队于2008年12月26日从中国三亚起航，赴亚丁湾、索马里海域执行护航任务。读图回答问题此次我国海军护航编队经过北印度洋海区时
During the Mid-Autumn Festival, family members often gather together _________ a meal, admire the moon and enjoy moon cakes.
share
to share
having shared
shared
She and her family bicycle to work, _________ helps them keep fit.
which
who
as
that
Susan had quit her well-paid job and _________ as a volunteer in the neighborhood when I visited her last year.
is working
was working
has worked
had worked
_________ along the old Silk Road is an interesting and rewarding experience.
Travel
Traveling
Having traveled
Traveled
_________ we don't stop climate change, many animals and plants in the world will be gone.
Although
While
If
Until
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