[ Grammar ]
There was an explosion in technology _____ the beginning of the 20th century.
A. in
B. at
C. through
D. on

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Modal and Auxiliary Verbs › ViewThe dentist _______________ fixing the patient’s teeth.
A. are
B. is
C. am
Vocabulary › View
Infer the meaning of “loom” in the sentence: “As the deadline loomed, the team worked tirelessly to complete the project.”
A. disappeared
B. approached
C. brightened
D. gauged
Grammar and Vocabulary › ViewObviously, I’d be … of that list.
A. in search
B. in trouble
C. in charge
D. on the top
Modal Verbs › View
Ronnie doesn’t see well. He ______________wear glasses.
A. can
B. should
