[ Present Tenses ]
A group of scientists are travelling around Africa. How many countries _____ so far, I wonder?
A. have they been visiting
B. do they visit
C. they have visited
D. have they visited

Random Topics:
Will and Will notVerb Tenses and Past ParticiplesPersonal PronounPast PassiveHave as verb and auxiliaryPast Simple VerbsProgressive TenseVerb PatternsPassive Voice in Past Simple TenseNoun, Verb, AdjectiveOther quiz:
Grammar › ViewThe doctors recommended that she _____ a holiday.
A. take
B. takes
Grammar › View
Two teenage boys ___ fighting.
a. was
b. were
refuse an offer
A. Turn away
B. Turn off
C. Turn down
D. Turn in
Would/would like - affirmative/negative › View
He _ go to the beach if it were hot outside.
A. would
B. wouldn’t
