u regret paying five hundred dollarsfor the painting”“No, I would gladly have paid______for it”

How are your recent trip to Sichuan?—I’veneverhad ______ onebefore.

March 11, 2011 ____ magnitude-9．0 earthquake struck Japan andsubsequent tsunami triggered the large-scale crisis．

is very strict with others, but heis always blind _____ his own shortcomings

______ do you go online, Kate — Not often, twice a month.