They don’t do those things because they don’t know ______.
A: what
B: how
C: why
D: when
A: what
B: how
C: why
D: when
举一反三
- Why do we need AI ? A: Do what human unable to do B: Do what human don’t want to do C: Do what human don’t know how to do D: Do what human want machine to do
- The freshman year is the most difficult for all college students because ______. A: they don't know how to live on their own B: they don't know when to study at college level C: they don't know how to study at the college level D: they don't have enough time for study
- I really don’t know __________. A: what to do B: how to do C: what to do it D: to do what
- I really don't know ______ about it. A: what to do B: how to do C: to do what
- I don’t know what has happened, and don’t know what to do next. A: 正确 B: 错误