The phrase "activities closely" is correct and usable in written English.
It can be used when discussing the monitoring or observation of activities in detail or with attention.
Example: "The team will monitor the activities closely to ensure compliance with the new regulations."
Alternatives: "activities attentively" or "activities carefully".
In Table 8, we recorded the number of active players, the pop-ups of payment confirmations (the recommendations), and purchase activities closely following the pop-ups in Oct./Nov./Dec.2014, on the phone game "Three Kingdoms".
When a worker is on the job, companies have every right to supervise activities closely.
If Latin American officers did use American facilities to transmit intelligence, this would have provided United States officials the opportunity to monitor Condor activities closely.
Diane and Leroy will continue to monitor his "extra-curricular" activities closely and by staying in the family home for at least another year he is likely to retain the focus he will need as a professional fighter.
The rapid rise of China as a spacefaring nation does not amount to a new space race, but countries across Asia, and established old hands such as the US and Russia, are watching their activities closely.
The determination of authorities to exterminate the underground terroristic order was shown by the fact that the publication of further details on the nightriders' activities closely followed the receipt by the Detroit police detective bureau of a letter mailed in New York and apparently written in human blood, advising the police to "lay off the legion".
We will need to monitor his activity closely".
Thus, their activity closely reflects the activity of the peripheral thermoreceptors, and their response patterns parallel human temperature perceptions.
"Under the settlement's significant requirements, the SEC will scrutinize his trading activity closely going forward to protect investors," Ceresney said.
Interestingly, one of the first areas in which this happened was the consumption of food, an activity closely connected with the immediate satisfaction of desires.
He has said Netzarim serves an important security function, permitting Israel to observe Palestinian activity closely in that area of northern Gaza.
