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ich D. at which。 at which 9) It’s a long time _______ I saw you last time. Yes, and what a pity it is since it will be a long time ______ we see each other again. A. before。 since B. when。 when C. since。 before D. when。 then Grammar Further practice 10) She liked the dictionary so much that she would like to take it ________ it cost. A. what B. how much C. whatever D. however 11) When he reads books, his habit is to make a mark _______ the meaning is unclear to him. A. there B. the place C. in which D. wherever 12) _________ you’ve mentioned it, I do remember. A. Because B. If C. Now that D. When Grammar Further practice 13) He whispered to his wife _______ he might wake up the sleeping baby. A. so that B. in condition that C. for fear that D. so long as 14) I won’t give you any help _________ you tell me the truth. It’s none of my business. A. unless B. since C. if D. even if 15) I was so familiar with him that I recognized his voice _______ I picked up the phone. A. immediately B. quickly C. suddenly D. hurriedly