In order to make the separate family reunited，he did ______ them.（Which one of the following is wrong？）
| A．all he could to help | B．everything possible to help |
| C．his best to help | D．what he could help |
Some so-called climate travelers _______ in one place for a few months and then move on to some other places as the weather changes.
| A．have stayed | B．are staying | C．stay | D．stayed |
The game was so exciting to play that the boy kept his eyes and attention ________ on it, ruining both a lot.
| A．fixing | B．fixed | C．to fix | D．fix |
The sides of the Iran nuclear negotiation reached a key point, the result of ________ would have a great influence on the world peace.
| A．that | B．which | C．whom | D．them |
The astronauts have to lie ________ the floor of the spaceship to fight against the great pressure during the flight.
| A．in | B．beyond | C．against | D．at |
—________ your new desk-mate?
—Well, she is nice except that she talks a little too much.
| A．How do you find | B．Who do you think is |
| C．What do you like | D．Whom do you want to be |