We're expecting to increase our return in/on/at investment in the next quarter.
on
Online shopping _____ increasingly popular nowadays.
is becoming
He stopped talk/to talk/talking to a colleague in the hallway.
to talk
We do/make business with Chinese companies which supply us with raw materials.
do
The company typically _____ team-building events outdoors, but this time, they _____ an indoor event due to unfavourable weather conditions.
At a/the/zero article first, I didn't understand a/the/zero article project's objectives.
zero article, the
On/By the whole, I'm in favour of the proposal.
On
Within the next few weeks, we will complete/will have completed the merger process.
will have completed
They would rather make/to make/making their own decisions.
make
Accurate/Neat measurements are very important in science.
accurate
At 3 pm tomorrow, we will discuss/will be discussing the quarterly report with the board of directors.
will be discussing
It's crucial that we comply/move/address with all industry regulations to avoid any legal issues.
comply
We can't afford to do/make any mistakes at this stage in the project.
make
They must/should have listened to customer feedback; now we're losing clients.
should have listened
move