[ Tenses ]
When the boss walked into the office, his secretary ____a letter.
A. Has been typing
B. Was typing
C. Is typing
D. Had typed

Random Topics:
Simple Past and Past Progressive TensesComparative and SuperlativesNarrative Tenses & ConditionalsModal Verbs of PermissionSimple vs Continuous Past TenseAdverbial Clauses of Reason / CauseConditional 0Grammar: Used to, Would, Be used to, Get used toComperative and SuperlativeGrammar - Present PerfectOther quiz:
Grammar › ViewEve works _____ a waitress in a local restaurant.
A. as
B. by
C. in
D. like
Grammar › View
They haven’t agreed_________what make of car they would buy.
A. with
B. on
Grammar › ViewHassan ________ English for three years now.
A. is studying
B. studied
C. has been studying
Grammar › View
. They are sleeping.
A. are the children back?
B. where did the children go?
C. will they sleep?
D. what are the children doing?
