It’s standard practice for a company like this one______ a security officer.
| A．employed | B．being employed | C．to employ | D．employs |
It’s a very kind offer, but I really _____ accept it.
| A．mustn’t | B．needn’t | C．can’t | D．don’t |
This cake is very sweet. You _________ a lot of sugar in it.
| A．should put | B．could have put | C．might put | D．must have put |
—Catherine, I have cleaned the room for you.
—Thanks. You _________it. I could manage it myself.
| A．needn’t do | B．needn’t have done |
| C．mustn’t do | D．shouldn’t have done |
He paid for a seat, when he _________ have entered free.
| A．could | B．would | C．must | D．need |
—Do you know where David is? I couldn’t find him anywhere.
—Well. He _________have gone far—his coat’s still here.
| A．shouldn’t | B．mustn’t | C．can’t | D．wouldn’t |