viet lai cau
11 i didn't eat lunch , i feel hungry now
=>if i................................................................
12 it hadn't rained , we would have a better crop
=>but for ..................................................................
13 i only come if they invite me
=> unless .......................................................................
13 he didn't revise all his lessons , he failed the exam
=>if he ...............................................................................
14 his sister sent her money , so he continued to study
=>but for .......................................................................
15 the park is over there , only 5 minutes walk
=>if you walk ........................................................
16 in case it rain , we'll stay at home
=> if it .................................................
17 let me give you my advice . you should cut down on smoking right now
=> if i ......................................................................................................................
18leave me alone or i'll call the police
=>unless ............................................................
19 if you arrive at the office earlier than i do , please turn on the air -conditioner
=> should ...................................................................................................................
\20 the children don't go to school in the snowy weather
=>if it .................................................................................
21` he died so young otherwise , he would be a famous musician by now
=> had ................................................................................................................
22 you must tell me the whole truth or i won't help you
=> unless ...........................................................................
23 the car breaks down so often because you don't take good care of it
=> were i ....................................................................................................
