Fill in the blanks with the correct forms of the verbs in brackets. (用括号中动词的适当形式填空。) (注意: 一定要认真判断,该用一般现在是一般过去时。4是否定句,请用缩略形式表达,否则系统会判为错。) 1 Mary ___________ (come) to China last month. 2 There _________ (be) a telephone call for you just now. 3 I listened but ___________ (hear) nothing. 4 Mike _____________ (not go) to bed until 12 o’clock last night. 5 He ______________ (find) some meat in the fridge.