Since William had been seriously ill for several months, his parents were worried about________ to return to school full-time.
A、hewantedD
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Theterriblenoiseis______memad.
Theproblem________whenthestudentsrefusedtodotheirhomework.
A baby might show fear of an unfamiliar adult, _______ he is likely to smile and reach out to another infant.
In some schools children who prefer to read books rather than ________ football become social outcasts (被抛弃者 ).
The opposition leaders ________ the government for not taking action sooner.
