The students were ________ over the ________ problem，listening to the teacher with a ________ expression on their faces.
#19060
A
puzzled；puzzling；puzzling
B
puzzled；puzzling；puzzled
C
puzzling；puzzling；puzzled
D
puzzling；puzzled；puzzling
推荐题目
---Could you help me take care of my pet dog on the 19th?--- I’m afraid I’m not that day.
#17891
A
vacant
B
sufficient
C
available
D
convenient
You have the ______ of working hard and being successful or not working hard and being unsuccessful.
#20610
A
selection
B
choice
C
alternative
D
option
— How was your holiday? — It couldn’t have been _____. I just stayed in the hotel because it was raining most of the time.
#18027
A
boring
B
more boring
C
most boring
D
less boring
Oh, boy, why are you just playing games all day? Can't you find something ______ doing at all?
#18459
A
practical
B
valuab1e
C
worth
D
positive
Of the two readable books, which do you think is ______ one for me to read?
#17977
A
a more suitable
B
more suitable
C
a suitable
D
the more suitable