It came as a great _______ to the parents that their son finally came back safe and sound.  
#5182
A
favor
B
sense
C
relaxation
D
relief
推荐题目
---Where’s your father? ---At ____.
#7354
A
Mr Green
B
Mr Green’s
C
the Mr. Green
D
the Mr. Greens
Six ___ are eating grass at the foot of the hill.
#7332
A
sheeps
B
sheep
C
sheepes
D
shoop
The surgeon_______ his excellent skill in carrying out the operation.
#6869
A
represented
B
instructed
C
demonstrated
D
exhibited