American Indian ______ about five percent of the U.S. population.
| A．fill up | B．bring up | C．make up | D．set up |
The fact _______ she had not said anything surprised all of us.
| A．which | B．what | C．that | D．how |
We thought _______ strange that Tom did not come yesterday.
| A．that | B．it | C．this | D．what |
That is ______ Lu Xun once lived.
| A．what | B．where | C．that | D．why |
That is _______ he likes the place so much.
| A．that | B．what | C．why | D．how |
It looks _______ it were going to rain.
| A．even if | B．as if | C．even though | D．like |