They …to the park because they were very tired
A. didn’t walk
B. not walked
C. walked

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Grammar Present Perfect (ever never)Simple Present vs Present ProgresiveGerund and To InfinitivePassive and Active VoiceSubordinate ConjunctionsGerunds in SentencesGerunds and InfitinitivesModalFinite and Non-Finite VerbAntonymsOther quiz:
Grammar › ViewThe subjects at high school were not really relevant to the real world. I cannot apply that knowledge in my job now.
A. If the subjects at high school are more relevant to the real world, I can apply that knowledge in my job now.
B. If the subjects at high school were more relevant to the real world, I could apply that knowledge in my job now.
C. The subjects at high school were relevant to the real world, so I can apply that knowledge in my job now.
D. If the subjects at high school had been more relevant to the real world, I could apply that knowledge in my job now.
Mixed General Quiz › View
The policeman is demanding that the thief ___ the crime.
a. confess
b. confesses
S + was/were not + V_ing + O.
This is past continuous _________________.
A. Wh- question
B. Yes/No question
C. Negative sentense
D. affirmative sentense
Grammar › View
You have to pass a test before you can _____.
A. move up a level
B. make progress
C. raise your hand