Itisdifficultto________theimplicationbetweenthelines.
A、gettoC
A 开始，接触 C 找出，理解 D 下来，写(记)下来
Aftermonthsofvoyage,Columbusarrivedin______laterprovedtobeanewcontinent.
Itisdifficultto________theimplicationbetweenthelines.
Thebookfairhasreceivedapositive________fromreaders.
Hewouldhavegivenyoumorehelp,ifhe________sobusy.
Notuntilrecently_____thatThompsonhadbentellingthetruthallalong.
