问题

The boy isn’t old enough ________ with thedifficult problem by himself.
A:deal
B:deals
C:dealing
D:to deal
B:deals
C:dealing
D:to deal
正确答案是:
同类题型
ked a couple ofblocks, looking in _______ for a taxi. How disappointed we were!
Why did you leave without a word of warning toJohn—But whatotherwise He never listens to me
Tony answered all the questions ________ the most difficult one.
The Spring Festival Galaof2013 theme was HappyChinese New Year attracted a large audience