问题
选择题
In the meantime, the question facing business is whether such research is ______ the costs.
A．worth
B．worth of
C．worthy
D．worthwhile
答案
答案：A
句型辨析。 Worthwhile (adj) 值得的worthwhile 用于下列句型It is worthwhile doing sth./ to do sth. 干某事是值得的worth 用于下列句型：sth. is worth sth/ doing此句型中只能用doing， 不能使用被动。 worthy 用于下列句型：sth. be worthy of sth/ being done sth. be worthy to be done。故选A。