【一般将来时】

1.(2009陕西) Dr. Smith, together with his wife and daughters, __________ visit Beijing this summer.
A. is going to B. are going to C. was going to D. were going to
答案：A
解析：句意“Dr. Smith将在今年夏天和妻子女儿们一起游览北京”。本题考查主谓一致。由this summer可知本句应用一般将来时，故排除C、D；together with连接并列主语时谓语动词单复数应取决于其前面的主语，故选A。

2.(2008全国II) If their marketing plans succeed, they __________ their sales by 20 percent.
A. will increase B. have been increasing C. have increased D. would be increasing
答案：A
解析：在if条件从句中，用一般现在时来指代一般将来时，可以得知他们的市场运作计划还没有成功，所以增加销售额也是个将来的动作，应该用will increase。

【过去将来时】

1.(2009湖南) When he _______ the door, he couldn’t find his keys.
A. would open B. opened C. had opened D. was to open
答案：D
解析：句意“当他要开门的时候，发现钥匙不见了”。was to do在此表示wanted to do或intended to do，would do在这里有情感意义，所以被排除。