You must fire__incompetent assistant of yours.
Athe
Ban
Cthat
Dwhichever
第1题
At that moment, with the crowed watching me, I was not afraid in the ordinary sense, as I __if I___alone.
Awould have been...had been
Bshould be...had been
Ccould be ...were
Dmight have been...were
第2题
Some Martian rock structuers look strikingly like structures on Earth that are known__ by microbes.
Ahaving been created
Bbeing crerted
Cto have been created
Dto be created
第3题
Timothy Ray, Brown, the first man cured of HIV, initially opted against the sten cell transplant that__history.
Acould have later made
Bshould have made later
Cmight make later
Dwoula later make
第4题
"I wondered if I could have a word with you." The paet tense used in the sentence refers to a ___.
Apast event for exact time reference
Bpresent event for tentativness
Cpresent event for unsertainty
Dpresent event for politeness
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