The Nile is one of ____________________ rivers in the world (LONG).
longest
This is ____________________ book I have ever read. (INTERESTING)
the most interesting
Describe the place you live
....
When I got home, he ______ (already finish) dinner.
had already finished
I ______ (have a shower) when the electricity ______ (go out).
was having / went out
I'm tired because I ______ (study / two hours).
have been studying for two hours
Look at those clouds! It's ______ (rain).
going to
When it ______ (rain), the ground ______ (get) wet.
rains / gets
If you ______ (study) hard, you ______ (pass) the exam.
study hard / will pass
I think that, by 2050, there ______ (be) humans living on the moon.
will be
