1. The old lady is in her mid-seventies—seventy-six to be ________.
A. obvious B. exact C. similar D. appropriate
2. A warm thought suddenly came to me _______I might use the pocket money to buy some flowers for my mother’s birthday.
A. when B. that C. if D. which
3. -----You should keep us _________whenever you are in trouble.
---- All right. I will.
A. informing B. inform C. to inform D. informed