38. Prior to booking a restaurant for the banquet, Amy had the staff ________ what kind of food they preferred.
(A) indicate
(B) to indicate
(C) indicated
(D) indicating

此處考使役動詞+人+原V

Amy had the staff ________ 

使役動詞有have/has/had / make/let

• [V Sb + VR]
  make Sb + VR  
  let Sb + V

• [V Sb + Ving]
  keep Sb + Ving

  have Sb + VR ～～（一次性動作）= ask Sb to VR Sth
  have Sb + Ving ～～（連續性動作）
  have Sth done ～～（被完成）

• [V Sb + to + VR]

  get Sb + to + VR

Examples:

• I got the mechanic to check my brakes.
  At first the mechanic didn't think it was necessary, but I convinced him to check the brakes.
• I had the mechanic check my brakes.
  I asked the mechanic to check the brakes.

Prior to　在...之前

banquet (n)宴會