[ Tenses ]
We ____ in the doctor’s office for two hours before they called our name.
A. Been sitting
B. Had sat
C. sitting
D. Had been sitting

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Degrees of ComparisonRelative Clauses and Past PerfectCompliment, Congratulation, and HopeContractions and Conjunctions�Put� Phrasal VerbArticles with Proper NounsBare Infinitive and To InfinitiveNoun / Pronoun-Ing and Infinitive Verb PatternsPresent Simple & Present Continuous TensesOther quiz:
Grammar › ViewThey ___ (talk) about the new project during their break.
A. talk
B. talking
C. were talking
D. talked
Grammar › View
It is time ………………to the meeting.
A. Go
B. To be going
C. To go
he is eighty years old, he’s well and seldom sick.
A. Although
B. If
C. When
D. Because
Grammar › View
Which sentence uses the correct article?
A. A sun is a star at the center of a solar system.
B. An sun is a star at the center of a solar system.
C. The sun is a star at the center of a solar system.