---Do you know the timetable of the school bus?
---Sure, the first trip________ at 6:30 a.m. and usually continues until 4 p.m. on weekdays.
| A．will start | B．starts | C．is starting | D．started |
The telephone base flashes, ________ missed calls.
| A．to indicate | B．indicating |
| C．indicated | D．having indicated |
________ from what she said at the meeting, she must have lied to all of us.
| A．Judged | B．Judging |
| C．To judge | D．Judge |
Some experts believe it is the grandparents who ________ for the spoiled child.
| A．are to blame | B．are to be blamed |
| C．should blame | D．are blamed |
--- Let’s go shopping, shall we?
--- Wait a minute. I ________ my housework and it won’t take long.
| A．just finish |
| B．am just finishing |
| C．have just finished |
| D．am to finish |
The girl had hardly rung the bell the door was opened suddenly, and her friend rushed out to greet her.
| A．before | B．until |
| C．as | D．since |