______ you think you can or not, you must finish the project before Friday

School begins __ _ the morning of Feberuary 18th.

The speech from the new government is a _______that major changes are on the way.

下列各组虚词的意义和用法不正确的一项是（ ）

In our school library there ____ a number of books onscience and the number of them ____ growing larger and larger.