Maybe all Americans realize that _______ will be the next president will face masses of problems.
A.who B.whoever C.whomever D.no matter who
Doctor Li Wenliang is reported to have been one of the first whistleblowers _______ the epidemic situation.
A.mentioning B.to mention C.mentioned D.mention
We can't imagine what great trouble the medical care personnel had _______ with the COVID-19.
A.fought B.for fighting C.to fight D.fighting
The president is committed to _______ the existing system of medical care.
A.reform B.reforming C.have reformed D.having reformed
The online game platform is crowded with teenagers, few of _______ enthusiastic about study.
A.whom B.that C.who D.them
The new treatment means, if _______ to the NCR will make all the difference for the general public.
A.applying B.to apply C.applied D.having applied
