请选择DCBA:F*B3x(I;g-Z/}'~Bob can't come out to play because he ____________help Dad in the garden.2I/d/`3c6K7P9I)e-a3T
A. can2I/d/`3c6K7P9I)e-a3T
B. can't2I/d/`3c6K7P9I)e-a3T
C. has to2I/d/`3c6K7P9I)e-a3T
D. have to2I/d/`3c6K7P9I)e-a3T