In spite of his ________ to be a scholar in that field, he is not well equipped with that talent.
A. potential B. competence
C. ambition D. character
I’m afraid there might have been 1000 audience in the concert last night, _____?
A. am not I B. aren’t I
C. mightn’t there D. weren’t there
_________ in the adult ceremony, the senior students feel they are shouldering heavier responsibilities now.
A. Swear B. Sworn
C. Having sworn D. To have sworn
Tu Youyou won Nobel Prize in Medicine for her discoveries that helped doctors fight malaria and _______ caused by roundworm parasites.
A. injections B. infections
C. prescriptions D. presentations
In the face of various economic uncertainties at home and abroad, the government has carried out ________ reforms to boost the economy.
A. bureaucratic B. systematic C.arbitrary D. ambiguous
—Dear me! It’s you, Bob! I ______ to recognize you at first sight!
—Nor did I! Time has changed us a lot!
A. fail B. failed
C. have failed D. had failed
