[ Grammar ]
I’ll be on a business trip ______ four days.
A. for
B. on

Random Topics:
Past Simple and ContinuousFamily Vocabulary and GrammarGerunds & Infinitives + VocabularyFuture Time and TensesPassive Voice with ModalsPresent Simple PassiveParticipal PhrasesModals Of SpeculationNoun Phrases and AdverbialsPresent and Past Simple PassiveOther quiz:
Grammar › View_________ the weather is good can we go to the beach.
A. If
B. When
C. Only if
D. In case
Phrasal Verb › View
We _______________ our grandmother’s house every weekend.
A. drop off
B. drop by
C. drop over
D. drop in