he teacher told them since light ________ (travel) faster than sound,lightning ________ (appear) to go before thunder.
travels, appears
暂无解析
Tosucceedinascientificresearchproject________.
________(fail)severaltimes,theyneedsomeencouragement.
Themorewelookedatthepicture,________.
Hefellasleepimmediatelylastnight;hemust________(be)verytired.
“Haveyoumovedintothenewflat?”“Notyet.Therooms________(paint).”
