We shall  never give up ______ for even one day. 
#49951
A
studying
B
study
C
to study
D
studies
推荐题目
I had a little trouble in       English grammar.
#49930
A
learn
B
learned
C
learning
D
to learn
It’s hot inside. You’d better         the room.
#50398
A
get out
B
to get out
C
get out of
D
to get out of
You shouldn’t worry about not _______ breakfast then.
#49166
A
have
B
having
C
to have
D
had
Students should pay attention to __________ the teacher in class.
#50928
A
hear
B
listen to
C
listening to
D
hearing