A. Whatever B. Whenever C. Whether D. However
A. until B. unless C. since D. although
A. before B. after C. since D. while
A. as well as B. as soon as C. as far as D. as long as
A. if B. unless C. since D. when
A. in case B. so that C. as if D. ever since
A. locates B. located C. is locating D. is located
A. worked out B. put off C. turned on D. taken in
A. that B. who C. when D. what
A. what B. that C. which D. whose
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