—________ one and a half months enough for the project to be finished?—I am afraid not. The professor is ill and only after he recovers ________ go on with it.
The charity organization has launched a TV appeal _______ people should do as much as they could to help those survivors in the earthquake.
It has been widely accepted that only when the students take an active part in the class activities _______ the most effective.
. With the whole village _______, the villagers had to move to higher land, waiting for help.
The UN does not have its own army. _______, it borrows soldiers from different countries.
. A nature reserve for white-flag dolphins was set up in 1992, _______ boats have been prohibited from sailing around since then.