— Have you ever visited the Opera House?—Yes．When I was in Sydney, I ______ it twice．
#102371
A
have visited
B
had visited
C
visited
D
would visit
推荐题目
---What’s that noise? ---Oh, my God! I ________ to turn the tap off after I brushed my teeth.
#102233
A
forget
B
forgot
C
was forgetting
D
had forgotten
A fully-grown blue whale _____ 110 feet in height and _____ several tons.
#101038
A
is measured; weighs
B
measures; weighs
C
is measured; is weighed
D
measures; is weighed
from the top of the tower ,the south foot of the mountain is a sea of trees.
#102030
A
Seen
B
Seeing
C
Having seen
D
To see
—Beg your pardon, but I didn’t quite catch what you said.—Oh, I to myself.
#101947
A
have talked
B
am talking
C
had talked
D
was talking