----What will you buy for your husband’s birthday?
---- I want to buy a ________ wallet for him．

The new research team was led by the ________engineer.

—I hate cities . The roads are dirty and they are always crowded.
—Do you know the world’s population has grown to_________？
more than six times what it was in 1800
six times more as what it was in 1800
more than six times large as it was in 1800
D. more than six times as large as in 1800

The shy girl felt ________ and uncomfortable when she couldn’t answer her teacher’s questions.

Some children are too ________ about their food, which is bad for their growth.

Once out of the earth’s gravity, the astronaut is________ by the problem of weightlessness.

Traveling is ______, but we often feel ________ when we are back from travels.

The ______ look on her face suggested that she _________ such a result.

--- Mum, what are you doing?
---Your uncle will come; I put a(an) ________ plate on the dinning table.

He likes to sleep with the window ________ and the door ________ at night.