A. was B. have been C. am D. had been
A. was warned, would not take B. had been warned, would not have taken C. would be warned, had not taken D. would have been warned, had not taken
A. wouldn't die B. didn't die C. hadn't died D. wouldn't have died
A. and B. but C. otherwise D. but that
A. If the captain were B. Had the captain been C. shoud the captain be D. If the captain would have been
A. do B. will C. are D. would
A. might have given B. might give C. must have given D. may give
A. hundreds old people B. hundreds old peoples C. hundred old people D. hundred old peoples
A. twenty and thirty B. twelve past thirty C. twelve and thirty D. half past twelve
A. Thousand B. Thousand of C. Thousands D. Thousands of
微信支付 
支付宝支付