. He made up his mind to devote his life____________the river____________polluted.
#97630
A
to prevent, to be
B
to prevent, from being
C
to preventing, to be
D
to preventing, from being
 Mary is always pleased _______  _______ at the party.
#97631
A
to invite; to sing
B
to invite; singing
C
to be invited: to sing
D
to be invited; singing
_______ their service, the workers of the hotel are active in learning English.
#97633
A
Improving
B
To improve
C
Improve
D
Having improved
. When the teacher came in, the student pretended ________ his lessons.
#97637
A
to do
B
to have done
C
to be doing
D
to be done
. _________ the temperature might drop, coal was prepared for warming.
#97638
A
To consider
B
Considered
C
Considering
D
To be considered
. –What’s the temperature today? --It’s 5 ℃ below _____. It is _____ cold.
#97642
A
freezing; frozen
B
frozen; frozen
C
freezing; freezing
D
frozen; freezing
To succeed in a difficult task ,______________.
#97643
A
Persistence is needed
B
Persistence is what you need
C
One needs to be persistent
D
A persistent nature is needed
Greatly ______, the students made up their minds to work at English even harder.
#97645
A
inspiring
B
inspired
C
having inspired
D
to inspire
He was seen ______ a letter in his bed room.
#97647
A
write
B
to write
C
written
D
wrote
I found my home town completely ______.
#97648
A
changed
B
changing
C
to be changed
D
to change
Tom failed ______ the experiment yesterday.
#97649
A
doing
B
did
C
to do
D
do