[ 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:
Grammar › ViewThe bears are hungry. ________ are hunting for food.
A. We
B. It
C. They
D. He
Grammar › View
We …………………..………….. Joe at the office at this time tomorrow. (meet)
A. are meeting
B. were meeting
C. will be meeting
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
