He was faced with the of whether or not to return to his country after he got the doctor's degree in America．
A．situation B．circumstance C．environment D．dilemma
—I really hope we can see Zhou Xun in Hangzhou this time.
—Maybe, if we are______.
A．enough lucky B．lucky enough C．luckily enough D．enough luckily
—You’ve dropped_______ “s” in the word “acros”.
—Oh, ______letter “s” should be doubled like this “across”.
A．a ; a B．an ; a C．an ; the D．the ; the
—Thank you for your MP4 player. I’ll ask Mary to take it to you soon.
—______. I’ve bought a new one.
A．No sense B．No hurry C．No way D．No use
I know one of the things I was unsure about was _____ hard it would be to climb this mountain.
A．what B．that C．however D．how
Some researchers are finding that daydreaming may be important to ______ mental health and it is ______ good means of relaxation.
A．the; 不填 B．不填 ; the C．不填; a D．不填; 不填
