英语二（2）考试题目，请武林高手解答。

英语二（2）考试题目，请武林高手解答。
完型填空：
Passage 2
Scientists are working hard to develop better aerials for mobile phones, a spokesman for Phikia Phones said today. ‘It really (11) ______ users when they lose the signal in the middle of a call, so we are developing new aerials that will enable users (12) _______ stronger signals. Many users reported that when they (13) _______, the signal was often lost’, said the spokesman. The new aerals are designed to avoid (14) ______ the signal by receiving the message on a wider range of radio frequencies. ‘We (15) _______ that this is a major concern for phone users’ said the spokesman. The new phones have a flexible external aerial, which users will have (16) ______ touching their ear or head. The aerials (17) ______ make the phones able to pick up a wider range of signals. The company spokesman insisted (18) ______ this was not a potential danger – “(19) ______ safety regulation has been followed”, he told our reporter. “If (20) ______ one of these phones this morning, I wouldn’t have missed my train coming here”, joked the spokesman.
11. A. irritates B. is irritating
C. irritated D. irritate
12. A. receive B. received
C. to receive D. receiving
13. A. are travelling B. were travelling
C. travel D. was traveling
14. A. losing B. lose
C. lost D. to lose
15. A. learnt B. had learnt
C. have learnt D. are learning
16. A. used to B. to used to
C. get used to D. to get used to
17. A. to B. --
C. are D. will
18. A. on B. to
C. what D. that
19. A. -- B. All
C. Every D. Any
20. A. I had B. I’d had
C. I’d have D. have

您好，以下是本人的答案，不明白可继续提问，希望对您有帮助：
11.A
12.C
13.B
14.A
15.C
16.D
17.D
18.D
19.A
20.A