The weather isn’t good enough for an outing，is it?—Not at all We can’t have ________ at this time of the year

We carefully compared the result of the firstexperiment with_______ of the second one.

I have a big brother. name is Paul.

Measures must be ______ to keep the factories _____ going on polluting the rivers[ ]

The participants were encouraged to _______ others inthe class to do the project, and the entire team would get credit.