If ____ in, the viruses can result in illness or even deaths.
#94746
A
breathed
B
to breathe
C
breathes
D
is breathed
推荐题目
What difficulty will you have ____ people when you stay in a foreign country?
#89450
A
understand
B
understanding
C
to understand
D
understood
_______ from space, we can find 70% of the surface of the earth _______ by water.
#96614
A
Seeing …... covering
B
Seeing …... covered
C
Seen ...... covering
D
Seen …... covered
Though ______small talk, Roy managed to have lively conversation with strangers.
#89909
A
lacked
B
lacking of
C
lacking
D
lacked in
Bats are surprisingly long-lived creatures, some _______ a life span of around 20 years.
#88688
A
had
B
having
C
have
D
to have
In the U.S, ______a tip is thought to be polite when paying the bill.
#91505
A
leave
B
having left
C
leaving
D
being left