―It’s a pity that many people lost their lives in the wreck accident in South Korea.― I think so. It’s not wise _______ the captain to _____ first.
Thanks ____ the photo ____ your family
—What are those? —are their books.
—Is this _____ schoolbag? —No. It's _____.
Not only oral English but also written English _____ important.
—We’ll make a trip to Hainan Island next weekend. Will you go with us? —No, I can’t _____ it at present.