So difficult _____ it to adjust to an English-speaking environment that he determined to learn English hard.
| A．he has felt | B．has he felt | C．he did feel | D．did he feel |
Mary_____beinLondonbecauseIsawherintownjustnow.
| A．mustn’t | B．isn’tableto | C．maynot | D．cannot |
Whenhewasold,MrSmith_____sitforhourswithoutsayinganything.
| A．would | B．should | C．must | D．will |
Iwanttogotothehospital,butyou_____withme.
| A．needtonottogo | B．donotneedgo | C．neednotgo | D．needgonot |
Thelittlekid_____nottouchthedog.
| A．need | B．dare | C．ought | D．could |
Heismuchricherthanwhathe_____.
| A．wouldbe | B．mustbe | C．usedtobe | D．couldbe |