You should try to be patient, Tracy. Learning a language is a slow __________. It takes time, you know.
We learned a lot from her father, an engineer ___ does research ___ science.
You should make a careful plan ___ the experiment.
Here’s my card, let’s keep in ___.
I don’t know the restaurant, but it’s __ to be quite a good one.
--Don’t you like the material? –Yes, it ___very soft.