—When will the engineer go to Singapore?
—Oh，I don’t know when he ___Singapore．When he ____ Singapore，I will call you．
| A．leaves for；leaves for | B．will leave for；will leave for |
| C．will leave for；leaves for | D．leaves for；will leave for |
Our plan ______ the trip ______ Suzhou needs to change now.
| A．of, of | B．to, to | C．for, to | D．to, of |
______ of the two little girls has to do some housework.
| A．Everyone | B．Both | C．Each | D．Every |
I get two presents for my birthday. ______ big one is from my father, and ______ small one is from my mother.
| A．A, the | B．A, a | C．The, the | D．The, a |
单词辨音：在A B C D 四个选项中，选出划线部分读音与其余三个不同的选项。
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We were swimming in the lake _______ suddenly the storm started.
| A．until | B．while | C．when | D．before |