he teacher told them since light ________ (travel) faster than sound,lightning ________ (appear) to go before thunder.
travels, appears
暂无解析
Iwonderifhecouldgetit________(do)beforetomorrow.
Thedirectorrecommendedthatshe________(study)moreEnglishbeforegoingabroad.
Iknowitisn’timportantbutIcan’thelp________aboutit.
Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.
Themorewelookedatthepicture,________.
