There are two () a day.

There are 365 days in a year. How many hours are there in a day？

There are two general approaches to attacking a （）encryption scheme.The first attack is k

There are one or two minor differences, but they are ________ the same text.A substa

When there are cordial relations between the two countries, we mean there exists a______ r

Look! There are______grazing over there.A．two cattiesB．two head of cattiesC．two cattleD．tw

There are days in a week. Theday is Saturday.A．se