(2013·北京高考)________ the course very difficult, she decided to move to a lower level.

 Maria ________ the interviewers with her knowledge and experience, and as a result she was offered the job.

Some people have called ________ the worst period ever for Pop Music.

Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.

I was completely terrified when I suddenly saw a dark figure leaning ________ the door in front of me.