---Where are you, Tom? ---Here in the sitting room, ___to Professor Smith.
#97175
A
to write
B
writing
C
is writing
D
to be writing
推荐题目
Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it.
#98604
A
to see
B
to be seen
C
seeing
D
seen
--- Will you go to the party? --- No, even though ___ to.
#95798
A
inviting
B
being invited
C
invited
D
having been invited
____ knocked down and hurt worried her friends.
#98001
A
Kate’s being
B
Kate was
C
Kate being
D
Kate had been
From the dates________on the gold coin，it is confirmed that it was made five hundred years ago.
#88460
A
marking
B
to be marked
C
marked
D
having been marked