[ Tenses ]
Systematic ocean exploration in the United States of America ____ in 1807 when Thomas Jefferson ___ the survey of the coast.
A. will begin / will authorize
B. began / authorized
C. has begun / has authorized

Random Topics:
Phrasal Verbs with up and downPre-intermediateModal Verbs and ConjuctionsPresent and Past TensesPassive Voice & TensesWho am I?Infinitives and ING FormsAdverb of MannersPresent Tenses: Simple vs ContinuousPresent ContinousOther quiz:
Homophones › ViewAre those_______shoes?
A. knew
B. new
Some vs. Any › View
Why on earth doesn’t …………. want to come with me?
· a. anybody
· b.somebody
Future Tenses › ViewTo make a promise we use…
A. present simple
B. be going to
C. future simple
D. future continuous
Relative Clauses & Real Conditionals › View
Choose the appropriate first conditional sentence: If I see him tomorrow, I ______ him about the meeting.
A. told
B. will tell
C. would tell
D. tell
