情态动词填空1You____falldownifyouaren'tcareful.2______Ipreparemyspeechforthemeeting?No,you_____.3_____youplaychesswhenyouwereten?No,I_____.ButI______doitnow.4It'srainingoutside.You___________takeanumbrella.5__
情态动词填空
1You____falldownifyouaren'tcareful.
2______Ipreparemyspeechforthemeeting?No,you_____.
3_____youplaychesswhenyouwereten?No,I_____.ButI______doitnow.
4It'srainingoutside.You___________takeanumbrella.
5______youmendthefence?Sorry,I___________.
用canmaymustcouldhavetocan'tcouldn'tneedn't