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：只有當孩子們離開家時，許多父母才感到有種失落感。考查Only+when從句放在句首時，用部分倒裝。