Nowadays，_____birds fly to the warm south in winter.（ ）
| A． |
million |
B． |
millions |
| C． |
two millions |
D． |
millions of |
相关试题
—_________ will Liu Yang stay in the space station this time?
—For six months.
| A． | How long |
B． | How often |
C． | How much |
D． | How soon |
After taking tennis classes, Tim is much ________ than last year.
| A． | strong |
B． | stronger |
C． | strongest |
D． | the strongest |
—_________ I take photos here?
—Sorry, you can’t. It’s not allowed in the museum.
| A． | A |
B． | Need |
C． | Can |
D． | Will |
MustWe have history class ________ three o’clock every Friday afternoon.
| A． | at |
B． | on |
C． | in |
D． | to |
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