Question

Only when their children leave home _________.

A．many parents did feel a sense of loss	B．did many parents feel a sense of loss
C．did feel many parents a sense of loss	D．do many parents feel a sense of loss

Answer 1

D

句意：只有当孩子们离开家时，许多父母才感到有种失落感。考查Only+when从句放在句首时，用部分倒装。