Sentence examples for four concerns can be from inspiring English sources

Thought questions at this moment help students see how these four concerns can be treated as independent (e.g., How does this trait develop?) or as intertwined (e.g., What environmental factors does development respond to and why would this be adaptive?).

Two concerns can be raised about this existing literature.

I believe the two sides' concerns can be grouped into three divides: the first over party loyalty, the second over how to win elections, and the third over the gap between Democrats and Republicans.

Strictly speaking, two main concerns can be emphasized.

Two main concerns can be found in routing algorithms based on this technique: first, it requires all sensor nodes to know their physical location.

Customers who order a plane then cancel at the last minute because of weather concerns can be billed for two hours' flight time, he said (at $1,000 or $1,500 an hour), but the firm may make an exception for regular customers.

(Note, however, that these concerns can be different for the two groups).

These concerns can be addressed fairly easily.

Addressing local concerns can be especially challenging.

It would also be more than slightly ironic if the BBC were now to receive a lower than necessary settlement since at least two of the questions causing most concern can be laid traced quite directly back to the departing chairman.

Unifying theories is a matter of showing how the mathematical formulae that comprise them can be derived from one another, how the phenomena they concern can be commensurated.