. Getting to other planets or to the moon _____ many problems.
| A．involve | B．involves | C．involving | D．to involve |
I _____glasses since I was in primary school and I hate them. They make me look like a bookworm.
| A．have worn | B．have been wearing |
| C．have been worn | D．was wearing |
Put everything ________to you in your bag, not others.
| A．belongs | B．belonged | C．belonging | D．to belong |
Experts insist that packets of cigarettes come with a health warning ______ to them.
| A．be attached | B．attach | C．attached | D．attaching |
— Tom, could you give me a hand in the following exam?
— ______ . Mom won’t allow me to do such crazy things.
| A．No problem | B．It's a pleasure | C．Forget it | D．My pleasure |
—The deadline is drawing, but I failed to challenge the task a third time.
— ______ my brother have a try?
| A．Will | B．May | C．Shall | D．Must |