[ Grammar ]
People are worried about ___ tomorrow or what happened in the past very often. However, this won’t do them any good and will only make them anxious(焦慮的).
A. what happens
B. what happened
C. what will happen
D. what was happening

Random Topics:
Few, a few, little, a littleThe Structural Types of SentencesIndefinite ArticleContinuous TensesPersonal pronouns + possessive adjectives + Introgative pronounsTo Infinitive or Bare InfinitiveDefinite and Indefinite ArticleTenses of Verbs - UsageTenses and Word FormationIntermediateOther quiz:
Tenses › ViewI usually ride my bike on weekends but now I … on weekdays too.
A. ride
B. am riding
C. have ridden
D. have been riding
Verbs and Adverbs › View
The food is _______ stale. Don’t eat it.
A. yet
B. rather
C. rarely
D. clear
