Tomwantedtoplayfootballwithhisfriendsinthestreet，buthisfathertoldhim________.

notto

nottodo

donotto

考查動詞不定式的省略。完整的形式應(yīng)該是…，buthisfathertoldhimnottoplayfootballwithhisfriendsinthestreet.為避免重復(fù)，常省去不定式動詞，保留不定式符號to，故選A。

The exhibition next Sunday will feature paintings created by contemporary artists.

hosted

being hosted

to be hosted

hosting

考查非謂語動詞。句意：下星期舉辦的展覽將展出當代藝術(shù)家的作品。根據(jù)句意及分析句子結(jié)構(gòu)可知，此處表示將來發(fā)生的事情，應(yīng)使用不定式作定語，host 與 exhibition 之間是邏輯動賓關(guān)系，應(yīng)使用不定式的被動式。故選C項。

---Shall I tell Jhon about it?

---No, you . I've told him already.

needn't

wouldn't

mustn't

shouldn't

考查情態(tài)動詞。句意：---要我告訴約翰這件事情嗎？--不，不必了，我已經(jīng)告訴他了。A.needn't不必；B. wouldn't不會；C. musn't禁止，不允許；D. shouldn't 不應(yīng)該。根據(jù)“I've told him already”，可知這里是“不必要”。故選A項。

---I'm sorry,but it's my seat.

--- I didn't know it's yours.

What if

I beg your pardon

That's all right

What for

考查交際用語。句意：---對不起，這是我的座位。---請原諒。我不知道這是你的。A. What if如果.....將會怎么樣；B. I beg your pardon. 對不起，請原諒；C.That's all right沒關(guān)系；D. What for為什么。根據(jù)"Idon't know it's yours."可知坐了別人的座位，請求別人原諒。故選B項。

It was not until 1920 ___ regular radio broadcasts began.

when

which

that

since

此題考查強調(diào)句。句意為：直到1920年，常規(guī)的電臺才開始。這句話把it is/was和that去掉后，仍是完整的一句話，因此我們可以知道這是一個強調(diào)句，而且是對not...until“直到...才”的強調(diào)。結(jié)構(gòu)是：it is/was+not until+其他成分。故選:C.