[ Prepositions ]
We have been waiting ___ twenty minutes.
a. for
b. since
Select your answer:
Random Topics:
Adverbs of frequencyTenses and PronounsPresent ProgressiveSimple Past TensesFuture SimpleTenses (Present, Past, Future Forms)Gerunds & Infinitives + VocabularyPresent Progressive (Future)Types of PrepositionOther quiz:
Subject-Verb Agreement › ViewEveryone in class (needs/need) to study.
A. Needs
B. Need
Tenses › View
Andy: Who _____ in the classroom?
Sue: They _____ Peter, Helen and Molly.
A. is；are
B. are；are
C. is；is
D. are；is