Question

--- I had thought he would be nervous in this speech competition, but he turned out to be calm.
--- He        quite enough preparation for it.

A．should do	B．must do
C．should have done	D．must have done

Answer 1

D

解析試題分析：考查情態(tài)動(dòng)詞。句意：——我本以為他在演講比賽中會(huì)緊張，但結(jié)果他很平靜。——他一定是準(zhǔn)備得相當(dāng)充分。must+ have done表示對(duì)過(guò)去的肯定的推測(cè)，意思是“肯定”，should have done 本應(yīng)該做某事而實(shí)際沒(méi)做。
考點(diǎn)：考查情態(tài)動(dòng)詞。