1.   But the main problem goes deeper and will take longer to solve.

2.   George Birkitt, whose main problem with the lines had been an unwillingness to look at them, showed a Marked improvement.

3.   Her main problem is that she is very highly-strung which tends to make other people feel nervous too.

4.   I also hope all parties will work together in a determined and responsible manner to solve the main problem facing this nation.

5.   It does not deal directly with the main problem of providing more room for permanent display.

6.   It is the ease with which the body converts dietary fat to body fat that causes the main problem in weight control.

7.   Lack of money seems to be the main problem.

8.   The main problem about drawing up a will is that it means accepting the inevitability of death.

9.   The main problem for engineers was the location of underground rivers in the area.