[ Tenses ]
Tom: Hi Ana. I _____________ (try) to ring you several times today.
A. Have tried
B. Have been trying
C. Have been tried
D. Trying

Random Topics:
There is, There are, Some, AnyGrammar (want to/ need to/ have to)Can vs CouldArgumentative VocabularyGrammar for TOEFLSimple TensesWould/would like - affirmative/negativeComparative AdjectivePresent Tense (Negatives and Questions)HomophonesOther quiz:
Modal Verbs › ViewYou are very ill. You __________ go to the doctor.
A. should
B. can
C. must
D. have to
Few vs. Little › View
I saw a __________ films on the weekend.
A. Few
B. Little