. With their son ______ a foreign college now, the parents have some financial problems now and then.
#91538
A
to attend
B
attending
C
attended
D
having attended
推荐题目
Most of the problems ______, he has a tight schedule every day. 
#91575
A
remaining unsettled
B
remained unsettled
C
remaining unsettling
D
remained unsettling
 __________ prices ___________so fast, we can't afford luxuries.
#91379
A
With; raised
B
As; raising
C
With; rising
D
As; risen
Mary often stays up, reviewing her lessons, books___ all over the desk.
#91213
A
spreading
B
spread
C
are spreading
D
to spread