You’ll have an exam soon. I think you should spend ______ time on your homework.
| A．less | B．more | C．fewer | D．shorter |
It is ________ eraser.
| A．a | B．/ | C．an | D．two |
good morning, Bob.
— ________.
| A．OK | B．Good morning | C．Hello, Bob | D．Yes，Kate |
— Your hat is nice.
— _________.
| A．OK | B．Yes, it is | C．Thank you | D．No, it isn’t |
Mary isn’t my sister. _________ is my cousin.
| A．She | B．He | C．Her | D．His |
— Are these your keys?
— __________.
| A．Yes, these are | B．No, these isn’t | C．Yes, they are | D．No, they isn’t |