请选择(4)处的最佳答案.
A. on
B. among
C. within
D. in
A.in additionB.thereforeC.howeverD.consequently
A. in addition
B. therefore
C. however
D. consequently
it is hard for me to give you a definite answer.
A. sure
B. correct
C. real
D. clear
They want to clear out ________