______ for the efforts of medical staff, the spread of the novel coronavirus would not be controlled, which astonishes the whole world.
A.Were not it B.Were it not C.Had not it been D.If it were
We haven’t found any evidence of his ______ attempt to ruin our reputation, but we still suspect he did it intentionally.
A.systematic B.subjective C.sufficient D.significant
______ they can’t wipe away the strain of the past, they can certainly move forward.
A.After B.If C.Unless D.While
—Hello, I have heard you are on holiday.
—That’s not the case. Actually I ______ from my holiday in Athens, where I ______ for a fortnight.
A. returned; stayed B. have returned; stayed
C. will return; stay D. am to return; stay
______ on mobile phones for storing information that people are unable to remember basic things.
A.Such is the dependence B.Such dependence does
C.So they are dependent D.So do they depend
Almost unbelievably, that dream has now become a reality ______ America’s first African-American leader and its first black first family.
A.in the eyes of B.in the event of C.in the shape of D.in the wake of
