[ Grammar ]
It is necessary that we come up with a way to ____________ this difficult problem as soon as possible.
A. solving
B. solve
C. solves
D. solved

Random Topics:
Can vs be able toGrammar - some / anyContractions and ConjunctionsFigurative LanguageTenses and StructuresHomophone & HomonymParallelism and Subject Verb AgreementVocabulary and ModalsPersonificationPresent Perfect or Past Simple TenseOther quiz:
Grammar › ViewWhat ______ you _____ (do) tomorrow evening?
A. is-do
B. are-do
C. is-doing
D. are-doing
Mixed General Quiz › View
Many people think the Statue of Liberty and Ellis Island “belong” to New York. This is wrong. These ___ landmarks “belong” to New Jersey.
a. hysterical
b. historic
c. history
