(Most )crickets have (two pairs) of fully developed wings, and (muscular) hind legs for (jump). 选d,为啥??
Ethel Harvey’s career illustrates (some of) the challenges encountered by women (scientists) of her generation (as they sought) support for (they) work. 肯定选d。但是women scientists是什么意思??不是说名词做定语不能用复数形式么??
Harriet Monroe’s verse (survive) today as (evidence of) her (undiscouraged) zeal for the (advancement) of modern poetry. 肯定选a。但是evidence是不可数名词么??为什么不用加an在前面??
The (elbows) are (joints) that (connected) people’s (up) arms with their forearms. d错,但是为什么用connected,被动态??