---When shall we meet your cousin at the station?
---His plane took off 2 hours ago, and it _________ arrive at 5pm.
| A．could | B．should | C．must | D．can |
--I feel so nervous about the National English Speech Competition tomorrow.
--________.
| A．I really envy you | B．Glad to hear that | C．Sounds great | D．Take it easy |
Some people care much about their appearance and always ask if they look fine in ________ they are
wearing.
| A．that | B．what | C．how | D．which |
Among the crises that face humansthe lack of natural resources.
| A． | is | B． | are | C． | is there | D． | are there |
An ecosystem consists of the living and nonliving things in an area ________ interact with one another.
| A．that | B．where | C．who | D．what |
at the photos, illustrations, title and headings and you can guess what the reading is about.
| A． | To look | B． | Looking | C． | Having looked | D． | Look |