________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
A、Ifyoucompare
B、Comparethem
C、Whencompared
D、Acomparison
Tostudyaforeignlanguage,__________.
A、agooddictionaryshouldbebought
B、buyingagooddictionaryisnecessary
C、youshouldbuyagooddictionary
D、itisnecessarythatyouwillbuyagooddictionary
_______themovieIwouldhavefinishedmypaperlastSunday.
A、Inspiteof
B、Butfor
C、Becauseof
D、Asfor
Aftersomanydayswithoutrain,thegroundquickly________thelittlerainthatfelllastnight.
A、dropped
B、flooded
C、grasped
D、absorbed
Becareful,_______you'llfalldown.
A、onthecontrary
B、orrather
C、orelse
D、asfor