Some students have trouble _______grammar while others have difficulty —___ new words.
We tried to _______ his doubts and let him tell the truth.
She down beside me and soon got into sleep.
It be difficult to get a train ticket during traditional Chinese Spring Festival this year because there are many ticket windows.
He is going to build a team that has a lot of potential and he thinks that is excites him.
They waited at the bus stop and about five minutes later the bus they wanted along.