China has a history of over 5，000 years． It is one of the ________ countries in the world．（ ）
| A． |
biggest |
B． |
richest |
C． |
oldest |
Amy is a creative lady ________ set up a website to sell handbags made of old jeans．（ ）
| A． |
who |
B． |
which |
C． |
where |
Reading books ________ a bridge between our lives and the unknown world．（ ）
| A． |
built |
B． |
build |
C． |
builds |
Chinese parents always try their best ________ a good education environment for their kids．（ ）
| A． |
provide |
B． |
to provide |
C． |
providing |
"Tom， would you please take out the rubbish？"
"Just a minute， mom， I ________ a phone call．"（ ）
| A． |
make |
B． |
makes |
C． |
am making |