多效蒸发的效数越多越好,是没有限度的。
参考答案:错
I insisted he______ back the wallet to the lady, but he insisted he______it.
A.handed; didn’t steal
B.hand; hadn’t stolen
C.hand; not steal
D.handed; hadn’t stolen
See the flag on top of the building ? That was ___ we did this morning .
A when B. which C. where D. what