While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth.

A．always expresses the message efficiently
B．shows the speaker’s true emotions
C．isolates a meaning
D．usually does not match the language

One reason for the successes of Asian immigrants in the U. S. is that they have taken great ______ to educate their children. A. efforts R pains C. attempts D. endeavors