Children’s brains can’t develop properly_______ they lack protein(蛋白质).
| A．when | B．since | C．because | D．unless |
. More attention should be paid English.
| A．to speak | B．for spoken | C．to speaking | D．of speaking |
Perhaps I’m not quite fit for the job, but , please let me have a try.
| A．in fact | B．anyway | C．so | D．otherwise |
, all of you have grown into big boys or big girls.
| A．As time going by | B．As time past |
| C．With time going by | D．With time passed |
She programs us with all the possible moves she has seen while human games.
| A．she watched | B．watching | C．watched | D．to watch |
-- Are you familiar the music?
-- Yes. The music is very familiarme, but I can’t remember when and where I heard it.
| A．with; with | B．to; to | C．with; to | D．to; with |