Estuaries provide both recreation and education for human beings. They also _____ the economy through tourism and fishing.
All those second-hand goods are sold atbefore.
Because her mother was ill, she had no _____ to go to the New Year Party.
I can’t help you ____ much for your help.
—Do you like some more chocolate? —, Bob, but I don’t want to gain weight.
delighted me most was my son was admitted to Beijing University.