Travellers in foreign countries are reminded to be _______ at all times. A. vigilant B. rash C. observant D. sharp-eyed
Travellers in foreign countries are reminded to be _______ at all times.
A. vigilant
B. rash
C. observant
D. sharp-eyed
Travellers in foreign countries are reminded to be _______ at all times.
Chọn A