[ Grammar ]
______ they didn’t stop working
A. they were tired
B. they are tired
C. their illness
D. the rain

Random Topics:
Past Perfect TenseArticles and DemonstrativesNoun QuantifiersPresent Simple, Present Continuous or Present PerfectPhrase and ClauseRelative Pronouns with PrepositionsPassive VoiceVerb-ing and InfinitiveConjunctionsPresent tense AffirmativeOther quiz:
Grammar › ViewRichard is pleased by __________ we finished the project on time.
A. That
B. the fact that
C. Ø
D. what
Modals › View
The manager _________ see you right now because she’s in a meeting.
A. wasn’t able to
B. can
C. isn’t able to
D. ables to
Modal Verbs › ViewIt’s possible to enrich your knowledge by listening to the radio.
A. Watching TV broadens your horizon.
B. Watching TV will make you wealthier.
C. Watching TV might make you richer.
D. Watching TV may make you know more.
Quantifiers › View
____________sugar did you buy at the supermarket?
A. How many
B. How much
C. Is there
