He is to solve this difficult problem alone. (able)

1. He is to solve this difficult problem alone. (able)

【考点】

形容词作表语;

【答案】

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语法填空（单句）容易

1. My mother's apple pie tastes d(美味的).

单词拼写（单句）容易

2. The TV is too l(大声的). Please turn it down.

单词拼写（单句）容易

3. Turn off the heat when eggs feel f(结实的) but not hard.

单词拼写（单句）容易