[ Modal Verbs ]
Tom ___ be in his room. I heard him talking to someone.
A. must
B. should
C. can
D. need
Select your answer:
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Grammar › ViewHe __________ at present.
a. works
b. is working
c. work
d. will work
Grammar › View
My mother could not answer your call just now as she ___ a shower.
A. took
B. takes
C. has taken
D. was taking