Q Scarcely had Lee left the office building 1 but his boss called him in 2 than when his boss

Ans: 3
Reason: when sentence starts with- HARDLY / SCARCELY / BARELY ... then we use ........... ,WHEN to connect the sentence
9 years agoHelpfull: Yes(13) No(0)
when his boss called him back
11 years agoHelpfull: Yes(4) No(2)
2.than when his boss was calling him back
11 years agoHelpfull: Yes(3) No(21)
3.when his boss called him back
11 years agoHelpfull: Yes(3) No(1)
but his boss called him in
11 years agoHelpfull: Yes(3) No(9)
Present Perfect. So, 3 is answer.
10 years agoHelpfull: Yes(3) No(0)
'scarcely, hardly, barely' takes 'when' while 'no sooner' takes 'than'.
8 years agoHelpfull: Yes(2) No(0)
3.when his boss called him back
11 years agoHelpfull: Yes(1) No(0)
Here 'had' indicating that already task completed..so,more suitable is 'then' i.e.,option(4)..
because after leaving the office building then his boss called him...i think so..
10 years agoHelpfull: Yes(1) No(0)
4) then his boss called him back
here had means if
11 years agoHelpfull: Yes(0) No(3)
1.but his boss called him in
11 years agoHelpfull: Yes(0) No(15)
3.when his boss called him back
10 years agoHelpfull: Yes(0) No(0)
when his boss called him back
9 years agoHelpfull: Yes(0) No(0)
than when his boss was calling him back
9 years agoHelpfull: Yes(0) No(0)

Q.Scarcely had Lee left the office building,_____________
1.but his boss called him in
2.than when his boss was calling him back
3.when his boss called him back
4.then his boss called him back