--How did you do in the test? --Not so well. I _____ much better but I misread the directions for Part D. A. could do B. could have done C. must have done D. should do
.They have their reasons for keeping their marriage___ secret for ___ moment.
He had decided to give it up , but on____ second thoughts he decided to try___ third time.
.As is known to all,____ tiger is in____ danger of dying out.
British people always talk about wether.
He is doctor at all. Don’t trust him.