MY LETTER ... HAVE COME YESTERDAY, BUT IT DIDN'T.A. OUGHT B. S...

câu 2. - DE THI KIEM TRA KIEN THUC GIAO VIEN
DE THI KIEM TRA KIEN THUC GIAO VIEN
Câu 2. My letter ... have come yesterday, but it didn't.A. ought B. should C. can D. must