The problem requires ______.
#97533
A
studying with great care
B
to study carefully
C
to be studied without carelessness
D
taking great care of studying it
推荐题目
________ the right decisions _________ the future is probably the most important thing we’ll ever do in our lives.
#95297
A
Making; concerned
B
Make; concerning
C
To make; concerned
D
Making; concerning
__________of danger in the street at night, she had to go home, with a friend_________ her. 
#94580
A
Warned, followed
B
Warning, following
C
Having warned, following
D
Having been warned, following
 ______ in her most beautiful skirt, the girl tried to make herself     at the party.
#90284
A
Dressed; noticed
B
Dressing; noticed
C
Dressed; noticing
D
Dressing; being noticing
It’s dangerous to get close to the building                        now . 
#94119
A
being constructed
B
constructed
C
been constructed
D
to be constructed