— 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
Always read the before you start taking the medicine.
#29574
A
instructions
B
suggestions
C
information
D
explanation
Our neighbours are so kind that they often give us a ____ when we are in trouble.
#29516
A
head
B
heart
C
hand
D
foot
David visited lots of in the world.
#28736
A
places of interesting
B
places of interest
C
place of interests
D
place of interesting