4．---I'm so thankful for your coming．I couldn't finish the work without you．
---_________ Team work makes perfect．（ ）
---_________ Team work makes perfect．（ ）
| A． | I'm glad to see you! | B． | Don't worry! | ||
| C． | Don't mention it． | D． | Never mind! |
3．---Excuse me，may I take some photos of the pretty garden？
---No，you _________．Look at the sign No photos．（ ）
---No，you _________．Look at the sign No photos．（ ）
| A． | needn't | B． | may not | C． | couldn't | D． | mustn't |
2．---How long haven't you written to your father？
---It's three months ______ he received my last one．（ ）
---It's three months ______ he received my last one．（ ）
| A． | when | B． | after | C． | before | D． | since |
1．---Has Kitty finished her report yet？
---I guess not．She on it at dinner time．Do you want me to confirm it？（ ）
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---I guess not．She on it at dinner time．Do you want me to confirm it？（ ）
| A． | is working | B． | was working | C． | has worked | D． | had worked |