So far, the computer virus ____ very few problems, although many scientists last year ____ a catastrophe.
A. causes / were predicting
B. has caused / predicted
C. has been causing / have predicted
D. is causing / predict
Random Topics:
Have to / Do not have toConditionals Type IGrammar - either...or, neither...norVocabularyNouns FormationPresent Perfect and Simple Past TenseGiving and Asking for AbilityModal Verb in Passive VoiceSimple Present and Present ContinuousLinking Verbs & Helping VerbsOther quiz:
Tenses › ViewI _______ her since we _______ school in 2010.
A. haven’t met / left
B. haven’t seen/leave
C. didn’t see/ have left
D. didn’t see/ left
Grammar › View
What is the BEST way to combine these sentences?
Ted searched for his jacket. It was nowhere to be found.
A. Ted searched for his jacket, or it was nowhere to be found.
B. Ted searched for his jacket, and it was nowhere to be found.
C. Ted searched for his jacket, but it was nowhere to be found.
D. Ted searched for his jacket, it was nowhere to be found.
Grammar and Vocabulary › ViewAli _______________ a storybook to school every day.
A. bring
B. brings
C. brought
D. is bringing
Adverbs of Frequency › View
How _________ do you go shopping?
A. often
B. much
C. always