8．The ________(平均)time the teachers in countryside middle school spend in teaching is more than 11 hours a day.

7．In China，the ________(百分比)of the people who carry a mobile phone is increasing.

6．This island is a________ only by boat.

5．The sound came from an unknown s________，far away in the distance.

4．We were late because our car had a b________ on the motorway.

3．His company c________ last year，leaving him nothing but debts.

2．The only a________ to that ancient castle is along a muddy track.

1．The jar is large enough to c________ ten glasses of water.