The plants need sand with a (深处) of at least 10 to 15 cm to grow.

1. The plants need sand with a (深处) of at least 10 to 15 cm to grow.

【考点】

名词; 单词拼写;

【答案】

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单词拼写（单句）容易

1. While waiting for the flight, your father his colleagues, but I am not sure.

A. might have met B. should have met C. must have met D. could have met

单选题普通

2. The old farmer，the badly injured and burnt soldier，came out of the burning farmhouse ，calling continuously for help. (support)

语法填空（单句）困难

3. Because the boat was turned by big waves upside down, he had no choice but to swim to the s quickly.

单词拼写（单句）容易