_______ I accept that he is not perfect, I do actually like the person.
| A．While | B．Since | C．Before | D．Unless |
My neighbor’s daughter changed so much that I didn’t ____ her at first sight.
| A．realize | B．recognize | C．research | D．reserve |
He had _____ me to come to the party, but he didn’t show up.
| A．allowed | B．promised | C．wanted | D．advised |
E-mail, as well as telephones, _____ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．play |
The water will be further polluted unless some measures______.
| A．will be taken | B．are taken | C．were taken | D．had been taken |
---Excuse me, sir, is this seat taken?
---_______.
| A．Sure, you may take it | B．Certainly. Help yourself |
| C．No. I don’t think so | D．No. I don’t hope so |