Itisnotdecided________theconferencewillbeheld.
A、whatC
A 什么 B 哪一个 C 什么时候 D (无词义)
The reply, when it finally came, was ________ the negative.
Theoldcouplehavebeenmarriedfor40yearsandneveronce_______witheachother.
Countrylifeisbetterthancitylife________itoffersfreshairandnoiselessenvironment
This is an important problem _______ too few social scientists have researched.
InclassifyingtheEnglishconsonantsandvowels,thesamecriteriacanbeapplied.
