If we know what happens before and after placing an order, we will have a clear picture in our mind.
                    举一反三
- We don"t know what to ______ at the university; we can"t make up our mind about our future. A: take in B: take up C: take over D: take after
 - After placing an order, we will need to sign the and make legal of all the details.
 - We need to<br/>brush our teeth ___ we sleep. () A: before B: after
 - 1. From the illusion picture, what can we know about an illusion picture?
 - As we can no longer wait for the delivery of our order, we have to _______ it.
 
