摘要 : Because can be a really useful word in an A-level unit test. Add it to a response becomes worth a mark. Use it sloppily though, perhaps when 'and' might have been more appropriate, and you may fail to gain credit. With these point... 展开 Because can be a really useful word in an A-level unit test. Add it to a response becomes worth a mark. Use it sloppily though, perhaps when 'and' might have been more appropriate, and you may fail to gain credit. With these points in mind, this Upgrade concentrates on just one word -- because. 收起