5000 câu trắc nghiệm Tiếng Anh 9 có đáp án - Phần 21
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If it_____ convenient, let's go out for a drink tonight. a. be b. is c. was d. were

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If it_____ convenient, let's go out for a drink tonight.

be

is

was

were

Giải thích

Chọn đáp án B