[ TOEIC Grammar and Vocabulary Review ]
The researchers ………………….. hard to develop a perfect new model over the last two years.
A. work
B. worked
C. are working
D. have been working
Random Topics:
Gerunds in SentencesComparative AdjectivesPast Simple vs Present SimpleVerb AbilityGrammar - FragmentsWill or Going toWish, Unless, If sentenceTenses & PrepositionPast ContinuousTo Infinitive or Bare InfinitiveOther quiz:
Present and Past Tenses › View. I usually (visit – visits – visited) my grandparents on Fridays.
A. visit
B. visits
C. visited
Tenses › View
_______,I will give you a call.
A. When I had arrived in Ha Noi
B. When I arrived in Ha Noi
C. When I arrive in Ha Noi
D. When I was arriving in Ha Noi
Grammar › ViewI haven’t been to the beach the _______summer.
A. every
B. all
C. whole
D. each
Conditional Sentences › View
If I go on a diet
A. I’ll buy you some sweets.
B. I’ll lose weight.
C. we’ll go for a picnic.