[ Past Modals ]
As they entered the room where the empty safe was, Inspector Hall started looking for clues.
“If the robbers didn’t get in through the door, they ___ have found another way in,” he said.
A. must
B. can’t

Random Topics:
Relative & ModalsObject PronounsCity PlacesPassive Voice - Present ContinuousMiscellaneous Grammar UsagesAdverb or AdjectiveModal and Modal PerfectPast Perfect SimpleSimple Verb TensesGrammar - FutureOther quiz:
Mixed General Quiz › ViewLas Alpujarras, a rocky area in Sierra Nevada National Park, is ___ relaxing and peaceful place to rest.
a. an
b. the
c. a
Adverb Clauses › View
What is the subordinating conjunction?
Because it was raining, we had to wait to run.
A. Because
B. Had
C. Wait
D. Run
