单项选择题
A.us B.them C.we D.it’s
A.sister-in-law’s B.sisters’-in-law C.sisters-in-law’s D.sister’s-in-law
A.CPAS B.cpas C.CPAs
A.his B.he C.them D.they
A.lat year's B.which of last year's C.last year D.in last year
A.was B.has C.were D.have
A.be suffered B.suffered C.to suffer D.suffering
A.for B.to C.on D.at
A.who B.which C.whom D.that
A.consequently B.moreover C.thus D.however
A.Be competitive B.Being more competitive C.Being competitive D.To be more competitive