Question

The doctors have done ______ they could ______the child.

A．whatever; to save	B．everything ; save
C．a(chǎn)ll what; to save	D．a(chǎn)ll which; save

Answer 1

A

考查名詞性從句。句意“那些醫(yī)生已經(jīng)盡最大努力來(lái)拯救那個(gè)小孩。”all that相當(dāng)于what，排除C；all作先行詞時(shí)，定語(yǔ)從句引導(dǎo)詞用that，排除D；do sth. to do sth.用不定式表示目的，排除B。故選A。