[ Grammar ]
Fill in the blank with the correct modal verb: “Engineers ___ follow safety regulations at all times.”
A. can
B. must
C. would
D. might

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Modal Verbs › View_____ you help me with my homework?
A. Should
B. Could
C. Must
D. Need to
Grammar › View
PAST PARTICIPLE of the verb DRINK
A. drinks
B. drunk
C. drank
Grammar › ViewAren’t you ______ her off at the airport now?
A. drop
B. dropping
C. drops
D. dropped
Grammar › View
you have already told me that, ……?
A. have you
B. haven’t you?
