— What are the _______ doing there?— They are busy _______ their science experiment.
#29439
A
Boys students; to do
B
Boy students; to do
C
Boys students; doing
D
Boy students; doing
推荐题目
--Is this a __________?--No.It’s a clock.
#29675
A
eraser
B
key
C
telephone
D
book
------Do you know the woman who is looking____ over a patient? ------ Yes. She is one of the best ____ in our hospital.
#27904
A
careful, woman doctors
B
carefully, women doctors
C
careful, women doctor
D
carefully, woman doctor