只要约束所允许，可任意假设虚位移的大小和方向（)。

— nughty boy kept tlking in clss.—re you _____ Mike It’s just like him to be so rude!coming— nughty boy kept tlking in clss. —re you _____ Mike It’s just like him to be so rude!comingcross B．looking down on C．looking forwrd to D．referring to

A．coming across

B．looking down on

C．looking forward to

D．referring to

Once Mr. Green () you in conversation, you're stuck with him for at least an hour.

A、submerges

B、engages

C、occupies

D、launches

Once Mr. Green () you in conversation, you're stuck with him for at least an

A submerges

B engages

C occupies

D launches

I’ll come to py visit to you if _______ this weekend.you’re convenient B．it is convenient for you C．y

A．you’re convenient

B．it is convenient for you

C．you feel convenient

D．it is convenient with you

A．impolite

B．rude

C．polite

D．warm

---Merry Christmas and A Happy New Year!

--- __________.

A：It's very nice of you

B：You're welcome

C：Thank you

D：The same to you

You're ______ your time trying to persuade him; he' II never help you.

A．wasting

B．losing

C．spending

D．missing

You're ______ your time trying to persuade him; he'll never join us.

A．spending

B．wasting

C．losing

D．missing

To tip a barman or barmaid, it is customary to tell him to __________.

A.“Keep this to yourself.”

B.“Would you like some tips？”

C. "Would you like a drink yourself？"

D.“Thank you.”