umbrella_
幼苗
共回答了17个问题采纳率:88.2% 举报
46.I'm not sure whether I can gain any profit from the investment,so I can't make a(n) ____ promise to help you.
C.definite确切的
47.If you want to _____ a pleasant visit,find out as much as possible about the manners and customs of your host country.
B.ensure确保
48.This is a very difficult operation.It is essential that you ________ for emergency.
A.are to be prepared
49.A good way to ___ your vocabulary is to read a daily newspaper.
B.enlarge扩大(词汇量)
50.While writing a report,you have to write in a(n) _____ way.
B.formal 正式的
51.They are _______ enough to get into universities.
B.fortunate幸运
52.Of swimming and football he much preferred the ____.
A.former (the former前者; the latter后者)
53.The little boy _____ his hiding place when he coughed.
A.gave away 泄露
54.Tomorrow we’ll have the final exam,so I have to ____ the books again.
A.go over 复习,仔细看
55.It could be quite a few years before the product is _____ available.
C.generally
1年前
2