Don’t bother me．I am listening to the birds ______．
#95520
A
singing
B
sing
C
to sing
D
sung
推荐题目
The mother，________ in the kitchen，totally forgot the medicine on the table within the child’s reach.
#88748
A
to be occupied
B
occupied
C
occupying
D
being occupied
Price is not the only thing customers consider before ______ what to buy.
#98805
A
deciding
B
decided
C
to decide
D
having decided
a written permission, he had to write another letter to the president of the university.
#90820
A
Not giving
B
Not having been given
C
Having not given
D
Having not been given
.____exercise early in the morning has become part of his retired life .
#97274
A
Take .
B
Takes
C
Taking
D
Taken