请教几题初二牛津英语试题：

请教几题初二牛津英语试题：
1.用because改写句子,使其句意不变：
The swimmers couldn't cross the wide river because of the strong wind.
改写:The swimmers _______ ________ _______ swim ________ the wide river because the wind was ________ ________.
2.用所给动词的适当形式填空：
Half a century ________ (mean) fifty years.

1.用because改写句子,使其句意不变：
The swimmers couldn't cross the wide river because of the strong wind.
改写:The swimmers【weren’t】 【able】 【to】 swim across the wide river because the wind was 【too】 【strong】.
2.用所给动词的适当形式填空：
Half a century 【means】(mean) fifty years.