"The situation in Europe has continued to become more difficult since we first spoke of our concerns a year ago".
"Teacher recruitment and retention has become much more difficult since the period we studied here," said Allen.
EU-Turkey relations have not been more difficult since the country became a candidate for EU membership in 2005.
Accounting for the plot is a bit more difficult, since coherent storytelling is even lower on the list of Mr. Daniels's priorities than protecting Mr. Efron's modesty.
Late last month, the company's chief executive, Janet Robinson, told analysts, "Economic conditions have been getting more difficult since the second quarter".
"The president's task has become much more difficult since the protests, but she remains the favourite," says Murillo de Aragão, a political analyst in Brasília.
For years, Pakistan has posed a problem for international lenders, one that has become even more difficult since Pakistan conducted nuclear tests in May 1998.
"Getting a permit for a ski area on federal land has become enormously more difficult since the 60's," he said.
The determination of the exchangeable cations was more difficult, since part of the marls dissolved.
However, the study of problem (1.1) becomes more difficult since M is a general function.
But the proof is more difficult since there may be a resonant case.
