—I swim here?
—I’m sorry．Children under 12 swim alone here．
| A．Can；mustn’t | B．May；must |
| C．Must；can’t | D．Can’t；can |
Dr Ma loves his job and he the lifestyle of a flying doctor．
| A．has used to | B．was used to |
| C．used to | D．has been used to |
This Math problem is too difficult. Can you show me_______, George?
| A．what to work out | B．to work it out |
| C．how to work it out | D．how to work out it |
My uncle_______ the club in 2010. He_______ the club for over 3 years.
| A．joined; has been a member of |
| B．joined; has joined |
| C．has joined; has joined |
| D．has joined; has been in |
Would you please give me_______ my English study?
| A．some advices in | B．any advice on |
| C．any advices in | D．some advice on |