You must apply yourself_______ the study you have to take up.
Allthechildrenontheplaygroundstaredupintotheskyuntilthenoise oftheplane_________.
Dobecarefulwhilecrossingthestreet.Ifnotyoumayget_______bya passingcar.
Itriedtoworkon,butIgotsotiredthatIcouldnolonger________.
Johnhasputonsomuchweightrecentlythathismotherhasto________allhistrouserstohismeasure.
Thehotelporter________anybodywhowasn’twearingacollarandtie.