.
. ---All the building materials have been washed away.
---So I have heard. But there was no sign ______ a heavy rain was on the way last night.
| A．when | B．If | C．which | D．that |
Sometimes it was a bit boring to work there because there wasn't always ______ much to do.
| A．such | B．that | C．more | D．very |
When is the best time to ____ my employer about an increase in salary?
| A．appeal | B．appreciate | C．applaud | D．approach |
The book was received so eagerly that it _____ on the first day.
| A．sold up | B．was sold up | C．was sold out | D．sold out |
-----Where ____ you put the ruler? I can't see it anywhere.
-----I put it right here. But now it is ____.
| A．have, gone | B．did, missed | C．had ,going | D．will, missing |
Happy birthday , Alice ! So you have____twenty-one already !
| A．become | B．turned | C．grown | D．passed |