Einstein’s Theory of Relativity was so __________that few people could understand it at that time.
A．controversial B．religious C．abstract D．contradictory
Since entry into high school the students have been ____ staying up late in the evening and getting up early in the morning.
A．admitted to B．allergic to C．accustomed to D．attached to
—Was it under the tree _______ you were away talking to a friend?
—Sure. But when I got back there, the bike was gone.
A．that B．where C．which D．while
----How did you like Nick’s performance last night? ----To be honest, his singing didn’t _______to me much.
A．appeal B．belong C．refer D．occur
Some insects ______ the colour of their surroundings to protect themselves.
A．take in B．take off C．take on D．take up
Mothers holding jobs outside the home should have _______ schedules to make it easier to care for their children.
A．heavy B．smooth C．flexible D．complex
