The conflict had developed into a stage ______ the two countries were gathering big troops on the border.
| A．where | B．when | C．which | D．that |
Most people are familiar with the idea that all matter in the universe ________ atoms.
| A．makes up | B．makes up of | C．consists in | D．consists of |
Throwing their hats into the air, the fans of the winning team _____ loud shouts of victory.
| A．let down | B．let in | C．let go | D．let out |
It wouldn’t be ________ for us to attend a formal wedding with the sports clothes.
| A．comfortable | B．convenient | C．appropriate | D．available |
After the Shenzhou-9 manned spacecraft was successfully launched, Liu Yang became the first woman astronaut ________space in China.
| A．to enter | B．enter | C．entering | D．entered |
The book didn’t _______ children because the author used two many scientific terms in it.
| A．apply to | B．appeal to | C．interest to | D．lead to |