How can I make sure QTP will run all instructions NO skip?

[farhanalam]

QTP Version 9.2
Add-Ins Web

Scenario:
In the following code, the QTP executes line #1, and jumps to execute line #2 however the application is still busy in line#1. The Line #2 is skipped and Value2 is not populated in Field 1.

Code 1:

Code:

#1.    Call SelectObject(.WebList("Field 1"), Value1)
#2.    Call SelectObject(.WebList("Field 2"), Value2)

In the following code, wait statement is used to wait for 5 seconds before running the next instruction.

Code 2:

Code:

#1.    Call SelectObject(.WebList("Field 1"), Value1)
#2.    wait(5)
#3.    Call SelectObject(.WebList("Field 2"), Value2)

Using wait statement between instructions at line #2, it works fine.

Issue:
If I remove wait statement from Code 2, sometime line #3 is skipped.
If I use Page.Sync at line #2, it does not do anything.

Question:
1. What is the best way to make sure that line #3 will not be skipped, and it will run regardless on fast or slow machine?
2. What I can use at line #2 instead of using wait (5) statement so that it makes sure line #3 will not execute until line #1 is completed successfully.

Thanks
Farhan