What is the correct negative form? “They ___ (not/understand) the lesson.”
A. does not understand
B. are not understanding
C. do not understand
D. is not understood
Random Topics:
Past Simple TensesSentence Types and ConjunctionsUsed toPast Simple & Past PerfectAdverbs of TimePersonal PronounsAdverbs or AdjectivesGrammar and IdiomsPresent, Past, and Future TimePresent Perfect TenseOther quiz:
Grammar › ViewIdentify the concrete noun in the following sentence: “The sound of the bell echoed through the hall.”
A. sound
B. bell
C. echoed
D. hall
Grammar - TOEIC › View
We __ for half an hour before we got to the hotel.
A. were walking
B. have been walking
C. had been walking
Conjunctions and Pronouns › ViewCombine these sentences using a conjunction of purpose: ‘She practices daily. She wants to improve her skills.’
A. She practices daily and she improves her skills.
B. She practices daily to take a break from work.
C. She practices daily so that she can improve her skills.
D. She practices daily because she enjoys it.
TOEFL Grammar › View
“I don’t think it will rain at all today, do you?”
“No, I _____ so.”
A. think not
B. not think
C. don’t think
D. do think not