The boy isn’t old enough ________ with the difficult problem by himself. 
#50365
A
deal
B
deals
C
dealing
D
to deal
推荐题目
I don’t know _____ next.
#49598
A
how to do
B
what to do
C
what can I do
D
how I can do
It’s good ______ English every day.
#48442
A
to read
B
read
C
reading
D
for reading
Do you have a pen?I want _____ a letter.   
#48775
A
to write
B
to work
C
writing
D
working
My mother would stay at home to watch TV _______ out for a walk.
#48713
A
than go
B
than going
C
rather than going
D
rather than go