[ Modal Verb ]
His letter is full of mistakes. He _____ the mistakes carefully before sending it.
A. must have checked
B. should have checked
C. could have checked
D. can have checked
Select your answer:
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Be Verb in Tenses › ViewThese meters ____ too short last time.
A. were
B. was
C. is
D. was
Grammar › View
Rita: Isn’t the movie at a quarter to seven? Lily: That’s right. It’s at _____. Let’s hurry up, or（否則）we’ll（將）be late for the movie.
A. seven fifteen
B. six forty-five
C. seven thirty
D. six thirty