We _______ last night, but we went to the concert instead.A should have studied B. might study C. must have studied D. would study
The two countries are going to meet to _______ some barriers to trade between them.
English is a language shared by several diverse cultures, _________ uses it differently.
We won’t start the work until all the preparations __________.
---How long have you been learning English? ----_________! Your English is so good.
My parents always _______ great importance to my getting a good education.