If this umbrella is not yours, please leave it where it ________.
[ ]
A.was
B.is
C.had been
D.has been
________ is a good form of exercise for both young and old .
[ ]
A.The walk
B.Walking
C.To walk
D.Walk
If this umbrella is not yours, please leave it where it ________.
[ ]
________ is a good form of exercise for both young and old .
[ ]