--Why does the lake smell terrible? -- Because a large amount of water_______.
#99621
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
The task _______ by the time you come back.
#102593
A
has been completed
B
will have been completed
C
will complete
D
has completed
The three sisters decided to hold a family party to _______ their parents’ silver wedding.
#101208
A
celebrate
B
memorize
C
congratulate
D
welcome
Wait for a few minutes, your watch____ now.
#103454
A
will be repaired
B
has been repaired
C
is being repaired
D
has repaired
His sister left home in 1998，and ________ since.
#99572
A
had not been heard of
B
has not been heard of
C
had not heard of
D
has not heard of