My wallet is nowhere to be found. I( )when I was on the bus.

A. that

B. around where

C. near which

D. which

A. who

B. whoever

C. one

D. whomever

A. who

B. whoever

C. one

D. whomever

A. her

B. who' s

C. whose

D. which

A. pay attention to

B. notice

C. know

D. realize

A. causing

B. caused

C. to cause

D. will cause

A. suffered

B. sufficed

C. suggested

D. provided

A. in the final

B. in the end

C. to the last

D. in conclusion

A. kept up

B. kept on

C. kept to

D. kept out

A. only if

B. unless

C. lest

D. except that