Nobody can explain the mystery ____ he suddenly disappeared.
I had not been asked to the party, so I felt ______ and a bit hurt.
---But why ? He simply ignored my words. ---He couldn’t have heard you. Look, he’s ________in the book.
I lost sight of Wang Ping when we reached _________ looked like a large market.
The medical team arranged to Africa _________five doctors and two nurses.
Our daughter doesn’t know what to ______ at the university; she can’t make up her mind about her future.