选A
couldn't do anthing but do
but(except, besides) 考点,如其前含“ do ”的不同形式,其后的动词不定式常省去“ to ”;但当这些介词前无“ do ”的某种形式时,其后的动词不定式不能省略“ to ”。类似有We have no choice but to do what we were asked.
选A
couldn't do anthing but do
but(except, besides) 考点,如其前含“ do ”的不同形式,其后的动词不定式常省去“ to ”;但当这些介词前无“ do ”的某种形式时,其后的动词不定式不能省略“ to ”。类似有We have no choice but to do what we were asked.