If ____ in, viruses can result in illness or even death.
#88250
A
breathe
B
breathing
C
breathed
D
to breathe
推荐题目
They suggested __ the sports meet till next Tuesday.
#97399
A
us to put off
B
our putting off
C
us of putting off
D
our put off
All the preparations_____, we're ready to start.
#98077
A
made
B
being made
C
having made
D
have been made
Mother keeps telling me not to waste money because money is difficult ________ nowadays.
#88650
A
earned
B
earning
C
to earn
D
to be earned
—What about the student in your class, Mr. Wang?—The doctor said that ________ sleep caused him poor memory and poor concentration.
#95219
A
lacking of
B
lacked in
C
lacking
D
lack for