[ Grammar ]
You are working very hard on this material.
A. helping verb
B. linking verb

Random Topics:
Pronoun & Present SimpleRelative Clauses beginning with PrepositionsAdjectives and comparisonsDEGREE COMPARISONTenses and Time MarkersGrammar speak,talk,say,tellSubject/Verb Agreement with Collective NounsAdjectives and AdverbsInterjection & Prepositional PhrasesGrammar - Be going toOther quiz:
Grammar › ViewThe aeroplane _______ over the building this morning.
A. fly
B. flies
C. flying
D. flew
Grammar › View
My parents ______to stay with us next week.
A. come
B. coming
C. are coming
D. came
Past Tenses › ViewI suddenly remembered that I ___ my keys.
A. forgot
B. had forgotten
C. was forgetting
D. had been forgetting
Grammar › View
It …. outside when it is in September to April.
A. rain
B. rains
C. raining
D. rained
