完成句子
1. The performance of the host, ________________( 旨在)to please the audience and draw
    their attention, was greeted with a cold silence, however.(intend)
2. I'm afraid I won't be able to attend the meeting at 3 ∶00 p. m. next Monday. I ___________( 已
   經(jīng)坐飛機(jī)到) New York long before then.(fly)
3. Come to my office tomorrow if ________________( 你方便的話). (convenient)
4. You'd better call him up ________________( 萬(wàn)一他記不清)the exact time.(remember)
5. The food must be eaten up within three days ________________( 一旦打開). (open)
6. A major problem arose at the meeting ________________( 要花多少錢) to complete the whole
   project.(cost)
7. He wished to forget everything ________________( 與原來(lái)生活有聯(lián)系的)and start a new life.
   (associate)
8. In no case ________________( 允許他)to get up until he was completely recovered from his
    illness.(allow)
9. She is busy with applying for a patent recently, and has ________________( 沒(méi)時(shí)間整理房間)
    which is in a mess now.(tidy)
10. Color blind people often find ________________( 難以區(qū)分)between blue and green.(distinguish)