[ Past Modals ]
“Our Internet connection was down yesterday. ” ” I’m sure that was frustrating.”
A. It could be frustrating.
B. It must be frustrating.
C. It can be frustrating.
D. It must’ve been frustrating.

Random Topics:
Subject-Verb AgreementPast Continuous and Past Simple TenseGrammar - Compound SentencesDegree of ComparisonTenses UsageTenses and VoicePast Simple Negative & QuestionsPresent Simple, Present Continuous or Present PerfectTypes of Sentence StructuresAcademic VocabularyOther quiz:
Grammar & Vocabulary › ViewChoose the correct sentence:
A. He is never late for work.
B. He never is late for work.
C. Never he is late for work.
Grammar › View
a group of words that contain a subject and verb and contain a complete thought
A. compound clause
B. dependent clause
C. parallel structure
D. independent clause