问题
I don’t know ___ next.
A:what to do
B:how to do
C:what should I do
D:how should I do
B:how to do
C:what should I do
D:how should I do
正确答案是：
同类题型
Can you __________________ other ways to solve thisproblem
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The student’s mind is always _____when he listens to his teacher.
I will tell him the good news he __________ home from work.
Which would you like, tea or coffee— Either______ OK， but I prefer coffee ______milk.