There is nothing wrong with using a credit card for purchases. It’s more _______ than carrying loads of cash.
| A．convenient | B．valuable | C．sensitive | D．innocent |
It remains unknown _____the peace talk between the two countries is going to lead.
| A．why | B．when | C．how | D．where |
Just as I am busiest , __________ you come bothering me with some questions now ?
| A．may | B．can | C．must | D．shall |
--- Do you need more fish ?
--- __________ .
| A．Thank you | B．Not likely ? |
| C．You’re welcome | D．No , thanks. I’m up to my ears |
Some educatorsthat children should be rewarded for their great performance.
| A．assumed | B．adopted | C．advocated | D．convinced |
—It was cold and the road was icy.
—It a comfortable journey.
| A．can’t be | B．shouldn’t be | C．mustn’t have been | D．couldn’t have been |