All that must be done----(do)
All that must be done----(do)
All that must be done _________.(do的适当形式)
All that must be done ____(do).答案是have been done,为什么是这个答案?这句
all ( ) can be done must be done.
合并句子all can be done.all must be done
all that can be done been done.
all that must ___ 填to be done 为什么不能填 be done.非得接不定式么?
BUT I WANT I MUST I DO APOLOGIZE FOR ALL THAT I'VE DONE
All that can be done _______(be)done
用what或者who合并句子all can be done.all must be done
All can be done. All must be done.合并为一个句子怎么写? 为什么?
all that can be done has been done