Thosewho’dliketovisittheexhibition________(sign)yournameshere.
Iknowitisn’timportantbutIcan’thelp________aboutit.
Tosucceedinascientificresearchproject________.
Heaskedmewhethermybrother________(fly)toBeijing.
Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.