Thedirectorrecommendedthatshe________(study)moreEnglishbeforegoingabroad.

Thosewho’dliketovisittheexhibition________(sign)yournameshere.

Heaskedmewhethermybrother________(fly)toBeijing.

Wooddoesnotconductelectricity;________.

________(fail)severaltimes,theyneedsomeencouragement.