A. turning down B. leading to C. taking off D. carrying out
A. finished B. to finish C. finishing D. finish
A. which B. who C. where D. that
A. as if B. ever since C. even though D. in case
A. however B. whichever C. whatever D. wherever
A. Whether B. What C. How D. Which
A. When B. If C. Although D. Until
A. although B. while C. until D. unless
A. changed B. would change C. had changed D. change
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