My parents don’t of my traveling outside alone during the summer holidays.
| A．submit | B．reject |
| C．approve | D．suspect |
Susan wanted to be independent of her parents．She tried _________ alone．but she didn’t like it and moved back home．
| A．living | B．to live |
| C．to be living | D．having rived |
I hear they've promoted Tom．but he didn't mention ______ when we talked on the phone．
| A．to promote |
| B．having been promoted |
| C．having promoted |
| D．to be promoted |
He was busy writing a story，only _________ once in a while to smoke a cigarette．
| A．to stop | B．stopping |
| C．to have stopped | D．having stopped |
As new driver．I have to practice _______the car in my small garage again and again．
| A．parking | B．to park |
| C．parked | D．Dark |
It is worth considering what makes “convenience”foods so popular，and ______ better ones of your own．
| A．introduces | B．to introduce |
| C．introducing | D．introduced |