Use the correct form of verbs in brackets

 Use the correct form of verbs in brackets.
1.     In all the world, there (be) _______ only 14 mountains that (reach) _______above 8,000 meters.
2.     He sometimes (come) _______to see his parents.
3.     My grandfather never (fly) _______in an airplane, and he has no intention of ever doing so.
4.     We just (decide) _______that we (undertake) _______the job.
5.     Right now I (attend) _______class. Yesterday at this time I (attend) _______class.
6.     That book (be) _______on the table for weeks. (not read) ______________it yet?
7.     You (be) _____________ here before? Yes, I have.
8.     It (rain) _____________hard. We can't do anything until it (stop) _______.
9.     London (change) ____________a lot since we first (come) _______to live here.
10.  You know she (stand) _______________looking at that picture for the last twenty minutes.
I (spend) ___________