.If you have really been studying English for so long, it’s about time you _____ able to write letters in English.
B
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Evenifhisletter（）tomorrow，it（）toolatetodoanything.
Thecompositionscontainedsofewerrorsthattheteachergotthestudents_____oneanother’spapers.
Iwastohavemadeaspeechif_____.
Marytiptoedoverandtooktheclockawaybecauseshehatedtohearit___whenshewastryingtogotosleep.
Shehiredalawyertoinvestigate,onlytolearnthatGabrielhadremovedhernamefromthedeed.Theinfinitiveverbphrase“onlytolearn”isused____.