This is the doctor without _______ help my father couldn’t have defeated the virus.
A.which B.whose C.that D.what
I rarely have an occasion _______ I can spend a whole afternoon with my kids.
A.when B.that C.as D.where
________ is often the case with children, Tom was better by the time the doctor arrived.
A.It B.That C.What D.As
Fully _______ in looking after three small children, she cannot speak to you at the moment.
A.occupied B.being occupied C.occupying D.being occupying
There are some health problems that, if _______ in time, can become bigger ones later on.
A.not treated B.not being treated
C.not to be treated D.not having been treated
Though _______ money, his parents managed to send him to university.
A.lacking B.lacked C.to lack D.being lacked
