This pair of jeans looks nice on you. Can I _________ ?
| A．try on it | B．try them on |
| C．try on them | D．try it on |
I once lived in a house _______ roof has fallen in.
| A．which | B．that | C．what | D．whose |
He has a friend _______ father is a doctor.
| A．who | B．whom | C．whose | D．which |
Could you tell me _______?
| A．where do you live | B．who you are waiting for |
| C．who were you waiting for | D．where you live in |
Is this the reason ______ at the meeting for his carelessness in his work?
| A．he explained | B．what he explained |
| C．how he explained | D．why he explained |
He gave me ______ on how to play soccer well.
| A．some advices | B．some advice | C．many advices | D．an advice |