If you don’t know a word, you must _______in a dictionary.

下列词语中，没有错别字的一项是（ ）

What did he do last week as a press man—- He __________ the Ethiopian famine for CCTV news.

You could a bike from your friend.

In the murder case, the suspect ______ all the charges against him, so the police had to collectnew evidence and ______ new strategies to prove that he was guilty of the crime. [ ]