My classmates _____ our classroom. Look! It’s very clean.
| A．have cleaned | B．will clean |
| C．is cleaning | D．cleaned |
. Over the years I have collected five ________ foreign stamps, _________ of them are from the USA.
A. hundred; two hundredsB. hundred; two hundred
C. hundreds of; two hundred D. hundreds; two hundreds
---Are you pleased with the result of the math exam?
---Not at all. I can’t have ______ one.
| A．a worse | B．a better | C．the best | D．the worst |
This shop is the one _______ sells men’s clothes.
| A．what | B．where | C．which | D．in which |
---Good morning. I’ve got an appointment with Mr Smith in his office.
---Morning. You ________ be Mr Jones. This way, please.
| A．can | B．must | C．should | D．may |
Could you please give me some advice ____ studying English?.
| A．in | B．on | C．at | D．with |