104.　 He seemed _________(忧心；焦虑)

103.　 All the _________(路径) to the city were blocked.

102.　 Did you observe the birds______(飞行) around the trees?

101.　 She ________(行走；走完)10 kilometers in less than thirty minutes.

100. 　Finally, his dream of becoming a scientist has come _______ (真的).

99.　 The book is at the top of the shelf, out of my _______ (触到).

98.　 He put forward two suggestions. The ________ (后者) sounds much better.

97.　 In order to _______ (避免) making mistakes, he checked his essay again and again.

96.　 We have a fair _______ (可能性) of winning the game.

95.　 I was frozen with fear at the _______ (看见) of the blood.