While Peter _______ the rose bush in the back yard, the phone rang.
A. had been watering
B. watering
C. was watering

Random Topics:
Simple Past/Past ProgressiveTenses and Verb FormsActive and Passive Gerunds and InfinitivesPunctuationsModals for Necessity and SuggestionsSimilestake, make, doPresent Perfect Simple vs ContinuousSubject/Verb Agreement with Collective NounsPronounsOther quiz:
Conditional Sentences › ViewThe two brothers are alike. I can’t distinguish between them.
A. If the two brothers were completely different, I would have recognized them.
B. If the two brothers were not alike, it would be impossible for me to realise one.
C. If the two brothers didn’t look alike, I could tell them apart.
D. If the two brothers were dissimilar, I would like them.
Vocabulary › View
What does it mean that the tide is coming in?
A. the tide is rising
B. the tide is getting low
Personal Pronouns › ViewThe children are swimming at the pool. Their parents are watching (看着) ________ by the pool side.
A. You
B. Us
C. Them
D. They
Vocabulary › View
At the ___________ moment, there is a strict tardy policy in place at Lincoln Park Middle School.
A. current
B. petulant
C. radiant
D. tedious
