I told Mom that not everyone could manage to have 3 meals on time everyday, ________？
| A．could he | B．didn't I |
| C．didn't she | D．could they |
-You look upset.
-Yes, this is the first time I________ form home.
| A．leave | B．left | C．have been away | D．is away |
The police________ already_______ his house but haven’t found any evidence against him.
| A．has; searched | B．have; searched | C．has; searched for | D．have; searched for |
We should consider the students’ request________ the school library should provide more books on popular science.
| A．that | B．when | C．which | D．where |
He was heard________ three songs in the next room.
| A．sing | B．to sing | C．singing | D．sung |
-Young man, come off the grass; we forbid________ on the grass here.
-Sorry, I didn’t notice it.
| A．to stepping | B．stepping | C．why | D．which |