【题目】Tim studied very hard.（改为否定句）

【题目】Sometimes it _______ in the UK. ( )

【题目】Smoke from factories _______ the air _______. ( )

【题目】There ________ (be not) many pears on the desk an hours ago.

【题目】I often _______ emails _______ my friends. ( )

【题目】My good friend ________ (give) me a book last Sunday.

【题目】—_______ will you _______? ( )

【题目】The _________ (child) were eating apples.

【题目】This bag has got four ________ (pocket).

【题目】He ________ (drink) a lot of juice last night.