—Did you have a chat with Tom?—No, I was trying to ________ an opportunity to do so, but I couldn't.
The police officers decided to conduct a thorough and _______ review of the case.
【2015·福建】It was________of Michael to inform us of his delay in case we got worried.
【2015·四川】Andy is content with the toy. It is he has ever got.
【2015·四川】Little Tom sat watching the monkey dancing in front of him.
【2015·浙江】Listening is thus an active, not a , behavior consisting of hearing, understanding and remembering.