I’m sure that they had practiced hard for the games as they won a lot of medals.
A. They couldn’t have practiced hard for the games as they won a lot of medals
B. They must have practiced hard for the games as they won a lot of medals
C. They shouldn’t have practiced hard for the games as they won a lot of medals
D. They might have practiced hard for the games as they won a lot of medals.

Random Topics:
Grammar: so and suchTime Clauses of FuturePresent Perfect Simple vs ContinuousAbilityPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTPronouns, Sentence Structure, and ApostrophesPassive Voice Present SimpleVerb TensesPast Simple and Past Continuous TensesSimple Present vs Present ProgresiveOther quiz:
Past Simple › ViewShe didn’t answer the phone because she … at home.
a) didn’t
b) weren’t
c) wasn’t
Present Continuous Tense › View
Read the conversation carefully.
Imam :What are you doing?
Dody: I’m watching TV. It’s Spongebob.
I like this film very much.
Imam : You should . . . now. You are going
to have a test tomorrow, right?
A. be studying
B. studying
C. be study
D. study
Grammar › View-… did you arrive? -At about six o’clock.
A. When
B. What
C. Why
Relative Pronoun › View
John bought a boat .. costs thirty thousand dollars.
A. which
B. that
C. of which
D. who
