A．They smile to cover embarrassment.B．It is an unusual and even suspicious behavior.C．

Could you please confirm that they have sufficient funds to cover this amount of order？（)

Although it seemed to take all her strength, the patient ______ up a smile to her mom.A．se

They have ______ to cover both of them.A．too small an umbrellaB．very small an umbrellaC．a

Why did the protesters make such a protest？A．They thought the vote didn"t cover enough vot

I tried to _____ for him but without success.A. cover withB. cover onC. cover upD.

No sooner had they got the goods covered up ______ it started raining hard.A、inB、thanC