___ it is difficult to solve this mathematical problem, but I believe I can do it.
A. Since
B. Although
C. Now that
D. Hence

Random Topics:
Grammar (want to/ need to/ have to)Present Perfect: for/sinceModals of ObligationPast Tense & Past Continuous TenseAdverb of MannersPassive Voice, Question Tag, PrepositionsAdverb ClausesModals VerbModals - Reported Speech - Conditionalsso vs suchOther quiz:
Future Tense › ViewChoose the correct form of the verb in Future Perfect tense.
A. They will has completed the project.
B. He will have complete the task.
C. She will have completed her assignment.
D. We will complete our homework.
Vocabulary and Grammar › View
What does ‘appearance’ mean?
A. The way someone or something looks
B. The way someone behaves
C. The way someone speaks
D. The way someone thinks
Future Tenses › ViewHow do we form the future continuous?
A. will + verb
B. be going to + verb
C. verb + s
D. will + be + verb in -ing
Modal Verbs & Time Prepositions › View
Form a sentence incorporating a modal verb and a time preposition.
A. He should arrive by 7 AM.
B. You can meet me at 3 PM.
C. She can go after 5 PM.
D. I will leave before 9 PM.
