is, are, has, have, having The average British family, which ________ smaller and richer than 50 years ago, ________ 3. 6 members.
is、has
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I only called the police when I ________ everything else.
The general sent out word that no one in the bunker ________ to bed until further orders.
is, are, was, were, itself, himself, themselves The trade union ________ believed to regard ________ as an organization where the molested could seek advice and help.