Thefarmerhadtowearheavybootsinthewinterbecausethefieldsweretoowetand________.
Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.
Shehadclearlyno________ofdoinganywork,althoughshewasverywellpaid.
Seniormembersofthestaffcompetedeagerly________thepositionofsalesmanagerinthecompany.
________,Johnhasbeentoseveralforeigncountries.
Wemust______thattheexperimentiscontrolledasrigidlyaspossible.