Problem: Draw the D-structure trees for the following sentences. Be explicit about what transformations derived the S-structure tree (if any). Recall that we have the following transformations: Expletive insertion, DP movement (both raising and passive), verb movement, T-to-C movement, and do-support/insertion.
Annotate the D-structure tree with arrows to show the derivation of the S-structure.
a. has the rice been eaten?
b. was the teacher baking a cake?