Hewouldhavegivenyoumorehelp,ifhe________sobusy.
B
本题考察与过去事实相反的虚拟语气。
Heblamedhispoorperformance_____jetlag.
CharlesSmith,______wasmyformerteacher,retiredlastyear.
It took me a month to get rid _______ the cough.
Themeeting_____nextweekwillbeofgreatimportance.
Idon’tneedanyhelpatthemoment,butI_____youroffer.
