You should study harder______ it is too late to catch up.
)—What’s his name? —. A、His is Bill B、It’s Bill C、He is Bill
)What’s thatEnglish? A、at B、on C、in
)—What’s this? —It’sorange. A、a B、an C、the
)—What color is your pen? —It’s. A、black B、a blue C、a yellow pencil
)—Are the keys yellow? —. A、Yes, it is B、No, they aren’t C、Yes, she is