______ on more clothes, you would not have caught the bad cold.
| A．If you put | B．Had you put | C．were you to put | D．should you put |
Pleasant as they made it ______ in Jiuzhaogou, we felt tired after the long journey.
| A．to travel | B．travel | C．travelled | D．travelling |
Although the police thought he was the most likely one, _____ they had no exact proof about it, they could not arrest him.
| A．when | B．until | C．before | D．since |
As we know, _____ medical examination will help us find out health problems as early as possible.
| A．common | B．general | C．regular | D．normal |
I found some old pictures at the back of my drawer which _____ memories of my childhood.
| A．called in | B．called up | C．called back | D．called for |
---Is everyone here?
---Not yet …Look, there _____ the rest of our guests.
| A．come | B．comes | C．is coming | D．are coming |