The first wave of urban__took place in more developed countries, especially in Europe and North America.
A. migrant
B. immigration
C. emigration
D. evacuation

Random Topics:
Subject Verb Agreement; Indefinite PronounsSimple TensesPrepositions of MovementConnectorsPresent Simple TenseClausesVocab and GrammarCoordinate ConjunctionTOEFLPast SimpleOther quiz:
Grammar › ViewImagine that Sarah and John are playing a word game. Sarah tells John that she hid her favorite toy either “under” the enchanted bed or “banana”. Can you help John figure out which word is a preposition?
A. Under
B. Banana
Adverbial Clauses › View
However she looks very young, she is twice as old as my-twenty-year old sister.
A. however
B. looks
C. is
D. as old as
Grammar › ViewWhile I ________ the floor, Mrs. Paker began cooking.
A. swept
B. was sweeping
C. has swept
D. has been sweeping
Vocabulary › View
Caliph
A. settling of scattered colonies of Jews outside Palestine after Babylonian exile
B. style of western architecture derived from the Romans
C. spiritual and civil head of Muslim state
D. long and wordy
