In the hills there is a mysterious dark lake, ________ has never been measured.
A.the depth of it B.whose depth
C.its depth D.the depth of whom
Women officers ________ 10 percent of the police force in this city.
A.fill up B.bring up C.use up D.make up
The students poured out of the teaching building, with the school ________.
A.to finish B.having finished C.finishes D.finished
I won’t be free this afternoon. I ________ one friend off.
A.will be seeing B.will have seen C.have seen D.saw
Su Song was an eleventh century monk ________ very little is known.
A.which B.whom C.about whom D.for which
Do your best, ________ you will succeed.
A.or B.and C./ D.but
