40. It was a long __________, and Jack and I both started to get annoyed after about two hours.
A. trek
B. picnic
C. frustration
D. routine
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41. The factory is __________ at a 60% increase in production this year.
A. aiming
B. working
C. developing
D. keeping
42. Her bitter experience on the island has __________ her into a stronger person.
A. made
B. kept
C. taken
D. turned
43. Mary is so excited because she will __________ her class to make a speech on TV.
A. expose
B. represent
C. draw
D. acquire
44. If you __________ at your search for a job, you are sure to find something suitable in the end.
A. persist
B. persevere
C. accomplish
D. conduct