Each button, when ____, provides a piece of beautiful music.
#88692
A
clicked
B
having clicked
C
clicking
D
being clicked
推荐题目
 As the immune system weakens, it loses the ability ________ illnesses.
#88514
A
fighting
B
fought
C
to fight
D
to be fought
A team, _____ two doctors and three policemen, ____ sent to search for the missing explorers.
#89955
A
consists of; was
B
consisting of; was
C
consisted of; was
D
to be consisted of; were
 He has come to_____.
#91457
A
checked his blood pressure
B
having his blood pressure checked
C
have his blood pressure checked
D
have checked his blood pressure