一．单项选择

1.  ______are you doing for vacation ?
A.who     B.what    C.what’s      D. how

2.  I’m ______my sister.

A．baby sit   B. babysits     C. babysiting   D. babysitting

3.  ----when are you  doing?        ----_______________.

A．For a week    B. In Monday  C. On May 12th D.sometimes

4.  I’m going to Shanghai ____a week .

A．at       B. to     C.   for    D.  From

5.  ---How long are you staying?---_____________

A. Once a week     B. For two days    C.In two days     D. On Monday