Our country is nearly years old． We'll celebrate its birthday on October 1, 2019 around the country．（ ）
A．seventy, seventy
B．seventy, seventieth
C．seventieth, seventy
D．seventieth, seventieth
I ate some fruit， which I ______ since I was a child， and the vegetables from my garden．（ ）
A．have enjoyedB．enjoyed
C．enjoyD．had enjoyed
She's brought you some eggs． As you know， she ________ chickens．（ ）
A．keepsB．will keepC．has keptD．kept
Please mind your head， sir．
________．（ ）
A．It doesn't matterB．Thanks a lot
C．Don't mention itD．I'm afraid not
May I help you， young lady？
__________．（ ）
A．Good for youB．Well done
C．Yes， pleaseD．Take it easy
Mum，I failed the exam again．
．（ ）
A．I'm sorry， tooB．Not at all
C．Hard to sayD．Don't worry