____ new study says that going to___bed late is harmful to our health．（　　）

A．/， /B．A， /C．A，theD．The， the

The three ____ upstairs are too small to have enough_____ for a double bed．（　　）

A．room， roomB．room， rooms

C．rooms， roomD．rooms， rooms

﹣ How soon will we get the offer from a new high school？

﹣_____ about two months．（　　）

A．InB．ForC．AmongD．During

Boxing Day， the 26th of December， got_____name from a time when many rich families gave boxes of gifts to poor people who had to work at Christmas．（　　）

A．it'sB．itsC．one'sD．one

According to a survey， four out of five women do housework at home， but only______of men would do it．（　　）

A．four fifthB．four fifths

C．two fifthD．two fifths