______ us prepare for the exam，the teacher suggested reading through our notes．（ ）
| A． |
To help |
B． |
Helped |
| C． |
Helping |
D． |
Being helped |
Generally, students’ inner motivation with high expectations from others ______ essential to their development.
| A．is | B．are | C．was | D．were |
The university estimates that living expenses for international students ________ around $8,450 a year. which ________ a burden for some of them.
| A．are；is | B．are；are |
| C．is；are | D．is；is |
His teacher told him that since his parents were working abroad, either his grandparents or one of his uncles ______ allowed to come to the parents’ meeting .
| A．was | B．were |
| C．are | D．is |
English is a language shared by several diverse cultures, _________ uses it differently.
| A．all of which | B．each of which |
| C．all of them | D．each of them |
---___________ everyone present at the meeting?
---No, all but one _________ there.
| A．Was; was | B．Were; were |
| C．Was; were | D．Were; was |