--When __________you __________to cough?--Two days ago.A. do; begin B. did ;began C. did ;begin
—_________. — It’s Green.
I ______ a boy. My name ______ Tom.
—______ your card number? —It’s 15.
—Hello! ______—Hello! I’m Jack!
There is ________ “u” in the word (单词) ”quilt”. A. / B. a C. an the