23. With Shanghai World Expo drawing near, volunteers are making use of every minute to _______ their foreign language because language volunteers must pass a written test and an interview.
To their great fear, they found________ in the heaviest snowfall they had never had.
The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat.
The girl looked at me with a _______expression. Maybe the problem was quite _________.
A great number of students ______ said they were forced to practise the piano.
Was it in the village _______ he was born ________ the talented journalist met the retired professor?