[ Gerund after Prepositions and Certain Verbs ]
I was worried ______ arriving late at the airport.
A. at
B. in
C. of
D. about

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Simple and Continuous Tensesso vs suchPresent, Past, and Future TimeGrammar : Structural Common ErrorsIf- ConditionalPrepositions and TensesApostrophes and Quotation MarksPresent Progressive or Present SimpleConjunctionsSuch...that, so ......thatOther quiz:
Grammar › ViewThat’s _______________ place to visit in Vietnam.
A. the more interesting
B. the most interesting
C. the interestinger
D. the less interesting
Grammar › View
The market is always crowded. ____ people go there to buy fresh food.
A. Lot of
B. A lot of
C. Many