I no difficulty in learning English since Ito learn it six years ago. a. have had / began b. had had / begin c. had / has begun d. am having / begin

Had

began

Explanation:

'Had' is past tense and describes an action that happened at a time earlier than the present time.

Example: I had lost my $20 that my mom sent me to the store with to buy bread, so when I got home, my mom was angry at me.

And again, 'began' is a simple past tense verb while 'begin' is present tense.

Example: I began studying my vocabulary last night, which resulted in me passing my pop quiz today.

MAKE ME BRAINLIEST!! GOD BLESS :)

where is the article\