—Some Chinese students find it difficult to understand native speakers when in London.
—Exactly，________ they've learned a lot about grammar and known many words.
| A．if only | B．now that |
| C．as if | D．even if |
It’s known ___ us that a mouse has a good nose ___cheese.
| A．for ; for | B．to ; for | C．by ; to | D．by ; at |
Doctors are often in ____ dilemma over whether or not to tell their patients ___ truth about their condition.
| A．a ; a | B．a ; the | C．/ ; a | D．/ ; the |
-- Must you play the guitar so loudly ? I can hardly ___ my book .
--- I’m sorry. I didn’t know you were reading .
| A．pay attention to | B．rely on | C．catch sight of | D．concentrate on |
Jack is late again. It is ___ of him to keep others waiting.
| A．normal | B．ordinary | C．common | D．typical |
--- Thank you for keeping me ___ of everything that’s happening.
--- Don’t mention it .
| A．inform | B．informed | C．informing | D．to inform |