I … forget to call my sister back. She left me a message this morning.
A. must
B. mustn’t
C. should
D. shouldn’t

Random Topics:
How much and how manySports VocabularyTenses UsageGrammar of Conjunctions and PrepotitionsMust or Mus notVerb PhrasesPresent Simple and ContinuousInfinitives or GerundsConditionals and Modals of ProbabilityTenses and ArticleOther quiz:
Academic Vocabulary › ViewWhat does the word ‘evident’ mean?
A. alike in appearance or nature, though not identical
B. easily seen or understood; obvious
C. stated clearly and directly, leaving no room for confusion or interpretation
D. evidence found within a particular text used to support or explain conclusions, opinions, and/or assertions about the text itself
Grammar › View
________ is born first has to take care of their parents in some cultures.
A. Who
B. Whoever
C. Which child
Transition Words › ViewOh, I hope I have enough money to buy lunch. ___________ I’ll have to eat this sardine and onion sandwich my mom made.
A. As a result,
B. Otherwise,
C. Consequently,
D. On the other hand,
Grammar › View
We use ………….… for plans and intentions.
A. present simple
B. will
C. be going to
