Hearrived____London____acoldwinternight.
A、at;at
B、in;on
C、in;in
D、;on
Sometimesabus____getsonthebustocheckthetickets.
A、agent
B、officer
C、conductor
D、inspector
Allofusknow,color-blindpeopleoftenfinditdifficultto__betweenblueandgreen.
A、separate
B、distinguish
C、compare
D、contrast
Asthepressure____,theliquidrockisforcedupthroughchannelsintheresistantrocktotheearth’ssurface.
A、intensifies
B、magnifies
C、heightens
D、deviates
Whodoyousupposeistheman____ourteacheristalking?