1.In the new teacher’s class, we were chosen _______ to answer her questions.
A. temporarily B. accidentally C. randomly D. naturally
2.The robbers searched all the boxes in the house hoping to ________more valuables.
A. take up B. show up C. turn up D. bring up
3.Currently, many American women are still faced with the ________ of choosing between work and family commitments..
A. desperation B. confusion C. dilemma D. concern
4.With economy developing at great speed, our city has _____ quite a few changes in recent years.
A. witnessed B. accumulated C. arisen D. introduced
5.It is difficult for children to change their eating habit later in life. _____，parents should encourage healthy
