Warmblooded animals live an active life even in freezing winter，which helps them to ________ their normal body temperature.
#73122
A
keep up
B
build up
C
bring up
D
pick up
推荐题目
You may not understand what they have done, because they ____ a younger generation.
#74798
A
belong to
B
are belonged to
C
are belonging to
D
will be belonged to
It’s ten years since the scientist _______ on his life’s work of discovering the valuable chemical.
#83133
A
made for
B
set out
C
took off
D
turned up
Suspecting him of robbing the bank, the Security Police were ___ his phone calls.
#71366
A
looking
B
glancing
C
monitoring
D
staring
As we joined the big crowd, I got ________ from my friends.
#71245
A
lost
B
separated
C
spared
D
missed