_____enough time and money, the researchers would have been able to discover more in this field.
A、GivingC
暂无解析
Ofcourse，（）mostimmigrantsdidnotgetrichovernight，buttheofthemwereeventuallyabletoimproveupontheirformerstandardofliving.
Although____Spanish，heattendedthecourse.
Evenifhisletter____tomorrow，it____toolatetodoanything.
To obtain a satisfactory result ， one must apply two（） of paint on a clean surface.
_____ at in this way, the present economic situation doesn't seem so gloomy.
