Mr. Wang made up his mind to devote all he could ____ his oral English before going abroad. 
#98055
A
improve
B
to improve
C
improving
D
to improving
推荐题目
--- Can you attend tomorrow’s meeting? --- I am sorry, but I will have too much work ______.
#98446
A
to see to to come
B
seeing to come
C
to see to coming
D
doing to come
______from space, the earth, with water _____seventy percent of its surface looks like a blue ball.
#95365
A
Seen; covered
B
Seen; covering
C
Seeing; covered
D
Seeing; covering
 -Would you like to sing a song for us?-_____.
#98322
A
I prefer not
B
I prefer not to
C
I prefer to not
D
I wouldn't prefer