Believe it or not , that is _____ people call the sixth sense.

May I play computer games now——No，_____ you have finished your homework.

You’ve got a stomachache But we ate at the sameplace How come my stomach is fine——You have an iron stomach! Mine isn’t ___ strong

reme weather, a worn tyre can break easily______ it’s mended, as is often the case.

e is less and less coal and oil, scientists are exploring new ways ofmaking use of ______ energy, such as sunlight, wind and water for power andfuel