--- What happened to your shoes?
--- They want .
| A．to mend | B．being mended | C．mending | D．mended |
How did all these _________?
| A．come out | B．come up | C．come across | D．come about |
While ____the dog, you should take care not to ____.Otherwise, it may be dangerous to strangers.
| A．walking; get loose | B．walk; be loose |
| C．walking for; get it loose | D．training; get it run |
ItissaidthattherearemillionsofcamelsinIndiaand __ofthemisgrowing.
| A．thenumber | B．agreatnumber |
| C．alot | D．agoodmany |
It’s exactly ______ we do ______ has changed the world.
| A．which; that | B．how; that | C．how; what | D．what; that |
I have not seen him ______ he left.
| A．ever since | B．after | C．before | D．until |