In the past month, cruel snowstorms hit some European countries and America ,    great transportation problems in these countries.
#95684
A
causing
B
caused
C
to cause
D
having caused
推荐题目
______that blood diseases are going to continue, we’ll have to______ them. 
#93223
A
Assumed; doing research at
B
Assuming; do research on
C
Assuming; do research for
D
Being assumed; do research on
______ to somebody , a British person often shakes hands with the stranger . 
#98543
A
Introducing
B
To introduce
C
To be introduced
D
On being introduced
Did you hear the sound like that of a door _____?
#98298
A
burst
B
to burst in
C
burst in
D
to be burst in