[ Idioms ]
They ran ___ against several problems when they tried to build the bridge in that area.
a. off
b. on
c. up

Random Topics:
Possessive PronounsEs and SAdverbIntermediate Prepositions-ed/-ing Adjectives3rd Person SingularPerfect and Past TensesPast Simple (to be)Gerunds in SentencesPersuasive TextOther quiz:
Modal Verbs › ViewIf we don’t book seats soon, we ____ to get into the concert.
A. are able to
B. won’t be able to
C. will be able to
D. can’t
Grammar › View
Unless you spoke a foreign language, you …………………………. a better job.
A. couldn’t get
B. can’t get
C. couldn’t have got
Subject Verb Agreement › ViewLions___in Africa.
A. live
B. lives
Auxiliaries Verb › View
………………. I have a word with you?
A. Will
B. Shall
C. Can
D. Must
